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Dublin Bus - why is this happening ?

  • 29-04-2014 1:17pm
    #1
    Registered Users, Registered Users 2 Posts: 1,699 ✭✭✭


    Just thought I'd put it here to see what other thinks.

    Seen three busses 46A today going in a little convoy. One was half full the other two were empty-ish. It seems like a serious waste of money and resources having those three buses going one after another where all of them would stop at the same bus stops.

    Stumbled at them of the N11 towards Deansgrange.


Comments

  • Registered Users, Registered Users 2 Posts: 2,073 ✭✭✭Devilman40k


    omri wrote: »
    Just thought I'd put it here to see what other thinks.

    Seen three busses 46A today going in a little convoy. One was half full the other two were empty-ish. It seems like a serious waste of money and resources having those three buses going one after another where all of them would stop at the same bus stops.

    Stumbled at them of the N11 towards Deansgrange.

    http://en.wikipedia.org/wiki/Bus_bunching

    Always happens with services with high frequency, or if something holds up one bus and the rest catch up. Solving it has always been a problem for Dublin Bus


  • Registered Users, Registered Users 2 Posts: 25,621 ✭✭✭✭coylemj


    omri wrote: »
    Seen three busses 46A today going in a little convoy. One was half full the other two were empty-ish. It seems like a serious waste of money and resources having those three buses going one after another where all of them would stop at the same bus stops.

    Stumbled at them of the N11 towards Deansgrange.

    They have come all the way from the Phoenix Park so they can easily get bunched or sometimes there can be a large gap between successive 46As at Deansgrange heading to Dun Laoghaire. It's down to the vagaries of the traffic in the city and delays at traffic lights which can allow the following bus to catch up.

    As soon as the outbound 46A passes Donnybrook church it's full steam ahead with a QBC all the way to Foxrock Church and they often get bunched along the N11.

    You have heard the saying that 'you wait all day for a bus and then three show up at once'?


  • Registered Users, Registered Users 2 Posts: 2,790 ✭✭✭AngryLips


    Nothing a BRT wouldn't solve ...or a properly implemented QBC.


  • Registered Users, Registered Users 2 Posts: 22,410 ✭✭✭✭endacl


    It's because of knobs who don't have their fare ready. The same knobs who stand in the middle of escalators.


  • Registered Users, Registered Users 2 Posts: 25,621 ✭✭✭✭coylemj


    endacl wrote: »
    The same knobs who stand in the middle of escalators.

    And when they reach the top or bottom they stop dead in their tracks deciding what to do next so the people following them off the escalator have to walk around them.


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  • Registered Users, Registered Users 2 Posts: 22,410 ✭✭✭✭endacl


    coylemj wrote: »
    And when they reach the top or bottom they stop dead in their tracks deciding what to do next so the people following them off the escalator have to walk around them.

    Yep. That's them.


  • Banned (with Prison Access) Posts: 18,184 ✭✭✭✭Lapin


    They have escalators on buses now ?


  • Registered Users, Registered Users 2 Posts: 24,644 ✭✭✭✭punisher5112


    It's a 10 minute service and even less at certain times and as said above it has a lot to do with these matters,

    Traffic, light seqence, slow passenger fumbling to get fare in turn holding everyone up, then buggies, having to wait to let elderly passengers sit as to not make them fall over with sudden movements of the bus, picking up wheelcahir users as ramp is slow, large passeger numbers encountered by 1st bus the 2nd catches up as the one in front has cleared a lot.

    If they were to stop a bus to allow gaps then duties would have to be changed and running times increased as they do call out especially while the schools were off that the buses were ahead of time so what can happen then is hold back and then turn a corner and become real busy and encounter traffic or a crash or any amount of different things that could happen.


  • Registered Users, Registered Users 2 Posts: 980 ✭✭✭macroman


    When I was in the training school there was a big emphasis on "even headway", which is keeping an even gap between buses on the schedule. There is a screen in the cab with a display of how the bus is running, if it's on time or if it's late. But it's often difficult to maintain even headway - it's easy to run on time on a Sunday night, but impossible on a Friday afternoon before a bank holiday!

    Having a gap in the service such as the bus in front of me getting a clear run and perhaps running a bit early means that there are more people at stops for me to pickup - there could now be more leap cards with no credit, more passengers who wait until they're on the bus to root out their coins, more tourists with notes, more buggies to be folded etc. All adding to the delay and widening the gap.

    For example say I'm now 5 minutes late, and the following bus has fewer passengers onboard and fewer to pickup, he could now be 3 mins ahead (but not early as he hasn't reached a timing point). The closer to the city the tighter the gap becomes as I may have to stop to drop and pickup at every stop whereas he only has to stop for dropping off only. I could now be 8 mins late, and the bus behind could have caught and overtaken me! With the traffic around Westmoreland Street, D'Olier Street, College Green, Dame Street areas it very easy for the buses to bunch up and run together.

    Dublin Bus can do very little to prevent this as it's unavoidable and difficult to predict - every driver drives different, every journey is different, traffic and passenger situations constantly change.


  • Registered Users, Registered Users 2 Posts: 6,384 ✭✭✭highdef


    I very very rarely travel by bus and I never know how much the fare will be. Before boarding, I try to have as denominations of coins split up in my hand so I can quickly gather the required fare after stating my destination to the driver and receiving the cost of travel. However, I will always be one of those who will delay others slightly because I don't have the correct fare ready despite trying my best to have the correct fare ready ASAP.


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  • Registered Users, Registered Users 2 Posts: 27 wahesh32


    highdef wrote: »
    I very very rarely travel by bus and I never know how much the fare will be. Before boarding, I try to have as denominations of coins split up in my hand so I can quickly gather the required fare after stating my destination to the driver and receiving the cost of travel. However, I will always be one of those who will delay others slightly because I don't have the correct fare ready despite trying my best to have the correct fare ready ASAP.

    I know figuring out the fares can be a bit difficult, but there is a fare calculator on the dublin bus app.


  • Registered Users, Registered Users 2 Posts: 25,621 ✭✭✭✭coylemj


    highdef wrote: »
    I very very rarely travel by bus and I never know how much the fare will be.

    I travel by bus a few times a week but do different journeys so am not always sure what the exact fare will be.
    highdef wrote: »
    Before boarding, I try to have as denominations of coins split up in my hand so I can quickly gather the required fare after stating my destination to the driver and receiving the cost of travel. However, I will always be one of those who will delay others slightly because I don't have the correct fare ready despite trying my best to have the correct fare ready ASAP.

    You would be one of the quicker cash customers in that case. An awful lot of people wait until they are actually standing at the driver before they dig into their pocket/handbag to extract their wallet/purse after which they start fumbling with coins.


  • Registered Users, Registered Users 2 Posts: 1,917 ✭✭✭JimsAlterEgo


    could they not hold a bus at a stop for a few minutes, or is that too sensible an idea for them to think of :pac:


  • Registered Users, Registered Users 2 Posts: 13,615 ✭✭✭✭ArmaniJeanss


    could they not hold a bus at a stop for a few minutes, or is that too sensible an idea for them to think of :pac:

    You might think it sensible, the passengers on board might think it a completely terrible ideal.

    Personally I love those rare few commutes home each year where everything falls into place - everyone has prepaid tickets, the bus binks every traffic light, no other traffic impedes the bus, and I end up getting home 15 minutes earlier than normal. For the bus to artificially stop on such a day because 'its going too quick' would disappoint me.


  • Closed Accounts Posts: 10,250 ✭✭✭✭bumper234


    coylemj wrote: »
    And when they reach the top or bottom they stop dead in their tracks deciding what to do next so the people following them off the escalator have to walk around them.

    I find a quick shoulder bump helps them to wake up and keep moving.


  • Registered Users, Registered Users 2 Posts: 6,047 ✭✭✭Hilly Bill


    Saw something about London buses on the telly a few weeks ago, and it said that they have a display in the cab telling them how close to the bus in front they are , and if they get too close they have to slow down and cant finish the route ahead of the bus that left earlier. It looked like they dont have the leapfrogging of buses like they do here.


  • Registered Users, Registered Users 2 Posts: 6,384 ✭✭✭highdef


    I don't have access to apps when I am on the move. I will check online beforehand on my laptop if I am planning the journey but sometimes have an unplanned bus journey, in which case I have no idea what the fare will be.


  • Registered Users, Registered Users 2 Posts: 18,283 ✭✭✭✭LXFlyer


    You might think it sensible, the passengers on board might think it a completely terrible ideal.

    Personally I love those rare few commutes home each year where everything falls into place - everyone has prepaid tickets, the bus binks every traffic light, no other traffic impedes the bus, and I end up getting home 15 minutes earlier than normal. For the bus to artificially stop on such a day because 'its going too quick' would disappoint me.



    That's all well and good for you, but for anyone waiting along the route they could end up with a significant wait for the next bus to come along if the bus you are on operates ahead of its schedule. Every individual departure has a timetable, from which the predictive times all along the route are generated, and by not sticking to that you end up with distorted performances.


    This becomes more prevalent during school holidays, and the key to this is to have alternative summer schedules and normal schedules. That's one reason for the switch to Saturday schedules at Christmas, which would have shorter and more realistic running times, meaning that buses would not be running ahead of schedules. Where bus services are operating on a clockface service, people along the route would expect that to be maintained along the route.


    Bus services do need to be properly regulated, and to have realistic schedules. Of course buses can be delayed by unforeseen events, that's why there is always some leeway built into the schedule so that the next departure is not delayed.


  • Closed Accounts Posts: 1,844 ✭✭✭Banjoxed


    AngryLips wrote: »
    Nothing a BRT wouldn't solve ...or a properly implemented QBC.

    The only possible way any bus corridor can work in Dublin is to have fully dedicated busways, not "QBCs" that get nobbled by every interest group going, be it private motorists, taxis, bicycles or motorbikes. So it won't happen.


  • Registered Users, Registered Users 2 Posts: 5,606 ✭✭✭schemingbohemia


    highdef wrote: »
    I don't have access to apps when I am on the move. I will check online beforehand on my laptop if I am planning the journey but sometimes have an unplanned bus journey, in which case I have no idea what the fare will be.

    Have you heard of the Leap Card? www.leapcard.ie


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  • Registered Users, Registered Users 2 Posts: 13,615 ✭✭✭✭ArmaniJeanss


    lxflyer wrote: »
    That's all well and good for you, but for anyone waiting along the route they could end up with a significant wait for the next bus to come along if the bus you are on operates ahead of its schedule.

    That's much less of an issue now that we have rtpi, people midway along a bus route should be using this rather than some notional idea that the bus should arrive at xx:20 and leave absolutely no earlier than xx:22 from their intermediate stop.


  • Registered Users, Registered Users 2 Posts: 6,384 ✭✭✭highdef


    Have you heard of the Leap Card? www.leapcard.ie

    In fairness, I only use the bus a handful of times a year at most so I really don't think it's worth the hassle, in my case:

    "A €5 fully refundable deposit is charged for Adult Leap Cards. When buying your Leap Card you must also top it up with a minimum of €5 Travel Credit."

    I would probably not even spend that much on bus travel in a year so I don't consider it cost effective and that's presuming that there are no administration charges to be paid on the leap card.


  • Registered Users, Registered Users 2 Posts: 18,283 ✭✭✭✭LXFlyer


    That's much less of an issue now that we have rtpi, people midway along a bus route should be using this rather than some notional idea that the bus should arrive at xx:20 and leave absolutely no earlier than xx:22 from their intermediate stop.



    I'm sorry, but absolutely not. Buses need to work to a timetable.


    People can choose the bus that is scheduled to get them there in time. There are full schedules for every stop along the route now, and while obviously they can slip due to unforeseen events en route, buses should not (just like trains) be operating early.


    What if someone is using the journey planner to make a trip that involves one or two changes en route. If a bus is running early, that could mean that the person might be significantly inconvenienced because a bus has already gone.


    That's why I said above that the working timetables need to be realistic, and reflect the traffic conditions - therefore different summer schedules are needed that do reflect the lower traffic volumes.


    But the basic premise sticks - the schedule should be adhered to and buses should not be operating ahead of it.


  • Registered Users, Registered Users 2 Posts: 13,258 ✭✭✭✭Losty Dublin


    highdef wrote: »
    In fairness, I only use the bus a handful of times a year at most so I really don't think it's worth the hassle, in my case:

    "A €5 fully refundable deposit is charged for Adult Leap Cards. When buying your Leap Card you must also top it up with a minimum of €5 Travel Credit."

    I would probably not even spend that much on bus travel in a year so I don't consider it cost effective and that's presuming that there are no administration charges to be paid on the leap card.

    If you spend no more than €10 a year means that you make at most, 6 bus journeys a year. Leaps also valid on Dublin commuter rail trips, Matthews Coaches, Swords Express, Wexford Coach, Bus Eireann's Dublin and Cork services and the Luas. I make very few trips on these other operators as well (I use a annual Dublin Bus Pass.) yet I've easily saved €10 by availing of the lower Leap fares they offer.


  • Registered Users, Registered Users 2 Posts: 13,615 ✭✭✭✭ArmaniJeanss


    lxflyer wrote: »
    But the basic premise sticks - the schedule should be adhered to and buses should not be operating ahead of it.

    I understand your logic of needing to maintain a schedule.
    What you fail to understand (I think) is how much people abhor the thought of waiting on a stopped bus for some overall system reason.
    Whether its sitting for 10 minutes waiting for a driver change, or a deliberately stopped bus because its ahead of schedule doesn't matter, either way its the sort of stuff which drives customers away.

    You are trying to compare buses to trains - everyone accepts that a train must stop at a station regardless of whether anyone wants to get off/on, hence its likely that a rigid timetable will be stuck to. If a bus goes four stops without anyone getting on/off then that should be regarded as a bonus, not a need to artificially pause at the next stop for five minutes.

    Basic premise of Dublin Bus should be that the bus departs as per the timetable, and gets to its destination as quick as that journeys circumstances allow.
    If they want to run them like trains then give us trains.


  • Registered Users, Registered Users 2 Posts: 3,981 ✭✭✭Polar101


    highdef wrote: »
    However, I will always be one of those who will delay others slightly because I don't have the correct fare ready despite trying my best to have the correct fare ready ASAP.

    You have coins ready, so you are not the problem. It's the people who look surprised when they hear they are expected to pay a fare, and then start looking for coins hidden deep within their purses. I call them 'fare negotiators'.

    Now, if Dublin bus had a simple fare structure, wouldn't that be handy.


  • Registered Users, Registered Users 2 Posts: 18,283 ✭✭✭✭LXFlyer


    I understand your logic of needing to maintain a schedule.
    What you fail to understand (I think) is how much people abhor the thought of waiting on a stopped bus for some overall system reason.
    Whether its sitting for 10 minutes waiting for a driver change, or a deliberately stopped bus because its ahead of schedule doesn't matter, either way its the sort of stuff which drives customers away.

    You are trying to compare buses to trains - everyone accepts that a train must stop at a station regardless of whether anyone wants to get off/on, hence its likely that a rigid timetable will be stuck to. If a bus goes four stops without anyone getting on/off then that should be regarded as a bonus, not a need to artificially pause at the next stop for five minutes.

    Basic premise of Dublin Bus should be that the bus departs as per the timetable, and gets to its destination as quick as that journeys circumstances allow.
    If they want to run them like trains then give us trains.



    I fully understand that - but the problem is that Dublin Bus have for years run their services with departure times only.


    Every other bus company runs with a full timetable along the route. That is what the accepted best practice is.


    Therefore you look at the timetable, choose the bus that gets you to where you want to go at the time you want, rather than having haphazard journey times.


    The timetables need to be realistic but at the same time if we are ever going to have a proper network, with connecting services, you will have to accept that timetables will have to be adhered to all along the route.


  • Registered Users, Registered Users 2 Posts: 13,258 ✭✭✭✭Losty Dublin


    Polar101 wrote: »
    You have coins ready, so you are not the problem. It's the people who look surprised when they hear they are expected to pay a fare, and then start looking for coins hidden deep within their purses. I call them 'fare negotiators'.

    Now, if Dublin bus had a simple fare structure, wouldn't that be handy.

    It would indeed and for a while it was.

    Back in 2002, Dublin Bus decided to go for flat fare with the introduction of the Euro. The Department of Transport told them to withdraw this arrangement and revert to the old system of multi based fares.

    One suspects that he who called time may well drive into work and use a free parking space and as such has an ignorance of bus fares and their ilk.


  • Registered Users, Registered Users 2 Posts: 1,455 ✭✭✭StreetLight


    lxflyer wrote: »
    that's why there is always some leeway built into the schedule so that the next departure is not delayed.

    Most definitely NOT always. Try looking at the RTPI around the Docklands area on a Saturday afternoon on Route 151. Because of a lack of leeway in the running times, you'll see significant gaps in service as buses are sent short along the route.


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  • Registered Users, Registered Users 2 Posts: 14,005 ✭✭✭✭AlekSmart


    Most definitely NOT always. Try looking at the RTPI around the Docklands area on a Saturday afternoon on Route 151. Because of a lack of leeway in the running times, you'll see significant gaps in service as buses are sent short along the route.

    Worth pointing out also that TfL in London practice active route management to a FAR higher degree than Dublin.

    It would not be unusual in Central London terms to be unceremoniously turned out of a bus at some point en-route in order to faciliate the bus running out-of-service to regain it's timetabled location.

    You would NEVER find a London service continuing in drop-off only mode to "speed things up"...It's either IN Service or it's NOT In Service.

    What Dublin Bus's system lacks,is agreed short-working destinations which could allow up to 75% of a route to be served where presently only a maximum of 50% is possible.

    The point is that EVERY Urban Bus Network practices route management in it's own way,and Dublin's is far from unusual in it's methodology.


    Men, it has been well said, think in herds; it will be seen that they go mad in herds, while they only recover their senses slowly, and one by one.

    Charles Mackay (1812-1889)



  • Registered Users, Registered Users 2 Posts: 18,283 ✭✭✭✭LXFlyer


    Most definitely NOT always. Try looking at the RTPI around the Docklands area on a Saturday afternoon on Route 151. Because of a lack of leeway in the running times, you'll see significant gaps in service as buses are sent short along the route.

    I should have used "in general" - you would normally make an allowance of about 5% of journey time to allow for delays.

    I agree - there are some schedules that are too tight.


  • Closed Accounts Posts: 5,761 ✭✭✭cdebru


    lxflyer wrote: »
    That's all well and good for you, but for anyone waiting along the route they could end up with a significant wait for the next bus to come along if the bus you are on operates ahead of its schedule. Every individual departure has a timetable, from which the predictive times all along the route are generated, and by not sticking to that you end up with distorted performances.


    This becomes more prevalent during school holidays, and the key to this is to have alternative summer schedules and normal schedules. That's one reason for the switch to Saturday schedules at Christmas, which would have shorter and more realistic running times, meaning that buses would not be running ahead of schedules. Where bus services are operating on a clockface service, people along the route would expect that to be maintained along the route.


    Bus services do need to be properly regulated, and to have realistic schedules. Of course buses can be delayed by unforeseen events, that's why there is always some leeway built into the schedule so that the next departure is not delayed.

    Actually the biggest problem is ****ty timetabling if traffic is lighter then everything should move a little quicker but headways should be fairly even.

    The problem is really piss poor planning, so they have buses on the same corridor timetabled all wrong so that they bunch along the route.

    Examples bus A leaves outer terminus at 12.00 bus B's terminus is 10minutes up the road and it is timetabled to leave at 12.10, so the two buses converge at around 12.15 and work in together, and then no bus for 30 minutes.
    If both buses left at 12:00 it would keep an even headway but that would require a proper timetable and people with timetabling skills not because they got the job because they are related, unfit for other work etc.

    It may also be less efficient in squeezing work out of drivers but far more efficient in actually providing a service.

    DB and the NTA need to get their fingers out, if you want timetable each stop, or certain stops , make sure those stops are fit for buses waiting for departure times, they are not impeding the progress of other buses etc, timetable properly on a corridor basis not individual routes or stfu about headways and stop trying to pass the buck to drivers to maintain headways while both organizations fail miserably to do what they should be doing.


  • Closed Accounts Posts: 5,761 ✭✭✭cdebru


    lxflyer wrote: »
    I'm sorry, but absolutely not. Buses need to work to a timetable.


    People can choose the bus that is scheduled to get them there in time. There are full schedules for every stop along the route now, and while obviously they can slip due to unforeseen events en route, buses should not (just like trains) be operating early.


    What if someone is using the journey planner to make a trip that involves one or two changes en route. If a bus is running early, that could mean that the person might be significantly inconvenienced because a bus has already gone.


    That's why I said above that the working timetables need to be realistic, and reflect the traffic conditions - therefore different summer schedules are needed that do reflect the lower traffic volumes.


    But the basic premise sticks - the schedule should be adhered to and buses should not be operating ahead of it.

    See the problem is they are not running early or ahead of schedule because there is no published schedule. There is a time to depart either terminus that is all.

    There is no time to be at any particular stop in between at least no published timetable. There is also no provision for buses to wait for times, no stops identified as safe to sit at for x amount of time.
    There is a machine (pressit box) that will tell a driver roughly where they are in relation to where the company expect them to be but it can only be viewed when the bus is at a full stop so is pretty much useless in monitoring driving. As I said before the main problem is poor standalone timetables that take no cognizance of the other routes running on the same corridor.
    This was all so supposed to addressed in network direct but still 5 years later no identified way points or timetables.


  • Registered Users, Registered Users 2 Posts: 18,283 ✭✭✭✭LXFlyer


    cdebru wrote: »
    See the problem is they are not running early or ahead of schedule because there is no published schedule. There is a time to depart either terminus that is all.

    There is no time to be at any particular stop in between at least no published timetable. There is also no provision for buses to wait for times, no stops identified as safe to sit at for x amount of time.
    There is a machine (pressit box) that will tell a driver roughly where they are in relation to where the company expect them to be but it can only be viewed when the bus is at a full stop so is pretty much useless in monitoring driving. As I said before the main problem is poor standalone timetables that take no cognizance of the other routes running on the same corridor.
    This was all so supposed to addressed in network direct but still 5 years later no identified way points or timetables.


    Actually that's where you're wrong.


    Go onto www.a-b.ie and click on "Find a timetable" and select a route - you will see the full timetable for each bus route with individual times for each stop. That's what the screen in your cab is monitoring you against and which drives the RTPI/AVLC. How else could the times be generated?

    I don't disagree about poor schedules, there's still a lot of work to do, and to be fair scheduling is far from an easy task given the constraints that now surround it.

    However, there's no excuse for the example quoted above where a bus arrived 15 minutes earlier than normal because it got a clear run - that simply should not happen - it just distorts any chance of a proper service.


  • Registered Users, Registered Users 2 Posts: 14,005 ✭✭✭✭AlekSmart


    lxflyer wrote: »
    Actually that's where you're wrong.

    Go onto www.a-b.ie and click on "Find a timetable" and select a route - you will see the full timetable for each bus route with individual times for each stop. That's what the screen in your cab is monitoring you against and which drives the RTPI/AVLC. How else could the times be generated?

    I don't disagree about poor schedules, there's still a lot of work to do, and to be fair scheduling is far from an easy task given the constraints that now surround it.

    However, there's no excuse for the example quoted above where a bus arrived 15 minutes earlier than normal because it got a clear run - that simply should not happen - it just distorts any chance of a proper service.

    Wellllll,in true Irish style lxf,cdebru is not quite fully wrong at all......:o

    The TfI publication is a reflection of the aspirational schedule as drawn up by the NTA after substantial study of the historic BAC schedules in place for years/decades.
    Many of these schedules are substantially out of kilter in either direction,as the City's Public Transport development never quite kept pace with the actual physical requirements of "New" Dublin...."Changing with the City" was never quite a realizable motto...;)

    In relation to en-route scheduling,what was "Supposed" to happen was a thorough survey of EACH BAC route with,from this,an agreed set of locations which would be adapted for individual regulated waits of not exceeding 2 minutes each.

    The only location which I note as having been so adapted is Stillorgan Road,where enough space to wait with a tri-axle and still safely accomodate other vehcles NOT being regulated exists.

    With the advent of Network Direct,this task became sidelined and as of now,no agreed framework exists for the safe operation of en-route regulation.

    It is also worth noting,that rather than continue with definitive time-at-stop timetabling,the increasingly preferred option abroad,a lá TfLondon is to outline the first and last service times and then "Buses every x to y mins between x hrs and y hrs"...this,when combined with RTPI displays renders the rigid timetable largely irrelevant....HOWEVER...and it's a big HOW...,as this arrangement tends to work best with frequencies far,far higher than we can,apparently,comprehend...so,danger here :eek:


    Men, it has been well said, think in herds; it will be seen that they go mad in herds, while they only recover their senses slowly, and one by one.

    Charles Mackay (1812-1889)



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  • Closed Accounts Posts: 5,761 ✭✭✭cdebru


    lxflyer wrote: »
    Actually that's where you're wrong.


    Go onto www.a-b.ie and click on "Find a timetable" and select a route - you will see the full timetable for each bus route with individual times for each stop. That's what the screen in your cab is monitoring you against and which drives the RTPI/AVLC. How else could the times be generated?

    I don't disagree about poor schedules, there's still a lot of work to do, and to be fair scheduling is far from an easy task given the constraints that now surround it.

    However, there's no excuse for the example quoted above where a bus arrived 15 minutes earlier than normal because it got a clear run - that simply should not happen - it just distorts any chance of a proper service.


    Drivers are provided with one time for each journey ( except on late night cross city routes where they would have a separate city center time. That is the departure time for the terminus.

    That is all they have they are not asked to stop at stops where no one wants to board or alight and wait for any particular time.

    So if a bus is 15 minutes ahead of a schedule the driver has never been asked to keep the bus is not ahead of schedule there is no schedule. There are "rough" guides as to were the company expect the bus to be but they again are not given to the driver.

    As I said if the NTA want buses to run to a schedule first you have to actually say what that schedule is and second you have to provide places for buses to wait should they find themselves ahead of that schedule neither has been done.

    15 minutes up is nothing in light traffic example between 2 city center stops the pressit gives 10 minutes at times with little traffic a couple of green lights, light passenger load you could do that in 90 seconds and have gained 8 and half minutes that's on one stop. Now you could do it the following week and it could take you 12 minutes same time of day. Without proper bus priority infrastructure you can't accurately give a stop to stop schedule it just doesn't work.


  • Registered Users, Registered Users 2 Posts: 18,283 ✭✭✭✭LXFlyer


    Guys just to make this clear, these were NOT drawn up by the NTA.

    They were and are prepared by Dublin Bus schedulers to facilitate the internal AVLC system which then in turn facilitates the RTPI for the customer.

    While not given physically out to drivers, and that the only physical schedule are the driver boards with the departure times/handover points, they are reflected by the screen in your cab, which you can check when stopped at any stage.

    I take your point on proper locations to be regulated, which frankly comes under the point that I've made before, which is a full audit of every bus stop on the network.

    While I appreciate that there will inevitably be variances for one reason or another, which will in general be negative, I think that 15 minutes earlier than the predictive schedule is pushing it.


  • Closed Accounts Posts: 5,761 ✭✭✭cdebru


    lxflyer wrote: »
    Guys just to make this clear, these were NOT drawn up by the NTA.

    They were and are prepared by Dublin Bus schedulers to facilitate the internal AVLC system which then in turn facilitates the RTPI for the customer.

    While not given physically out to drivers, and that the only physical schedule are the driver boards with the departure times/handover points, they are reflected by the screen in your cab, which you can check when stopped at any stage.

    While I appreciate that there will inevitably be variances for one reason or another, which will in general be negative, I think that 15 minutes earlier than the predictive schedule is pushing it.



    First of all who drew them up is irrelevant to me second, they are not given to drivers ever, there is a box on the bus that displays only when fully stopped and only when positive, as you can't see it till you stop and if you are getting a good run you aren't stopping as much it is largely worthless and there is no agreement on its use either way. And lastly as the company and the NTA still haven't provided any agreed safe place in which to wait out any time it is a cart but still no sign of any horse.


  • Registered Users, Registered Users 2 Posts: 18,283 ✭✭✭✭LXFlyer


    cdebru wrote: »
    First of all who drew them up is irrelevant to me second, they are not given to drivers ever, there is a box on the bus that displays only when fully stopped and only when positive, as you can't see it till you stop and if you are getting a good run you aren't stopping as much it is largely worthless and there is no agreement on its use either way. And lastly as the company and the NTA still haven't provided any agreed safe place in which to wait out any time it is a cart but still no sign of any horse.


    I understand all of that - but the point I am making is that all of that needs to happen if the bus service is to develop into a proper network.


  • Closed Accounts Posts: 5,761 ✭✭✭cdebru


    lxflyer wrote: »
    I understand all of that - but the point I am making is that all of that needs to happen if the bus service is to develop into a proper network.

    No that is not what you said " you said that there is a schedule for each stop and it should be adhered to"

    That is wholly incorrect there is NO schedule for every stop, there are rough guidelines but they are not provided to drivers in any usable way.
    You never mentioned any of that nor that waypoints still havn't been provided, etc etc.

    All that stuff may happen in the future but it doesn't exist now and a lot of things need to be done to get there including proper time ...


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  • Registered Users, Registered Users 2 Posts: 18,283 ✭✭✭✭LXFlyer


    cdebru wrote: »
    No that is not what you said " you said that there is a schedule for each stop and it should be adhered to"

    That is wholly incorrect there is NO schedule for every stop, there are rough guidelines but they are not provided to drivers in any usable way.
    You never mentioned any of that nor that waypoints still havn't been provided, etc etc.

    All that stuff may happen in the future but it doesn't exist now and a lot of things need to be done to get there including proper timetables, waypoints, safe stopping areas, bus priority measures etc etc.



    Well I would argue that it is a schedule. It may not be on your boards, but it is the planned schedule. Otherwise the predictive times and journey planner are meaningless.

    In the meantime, you may wish to edit your post as you've included a copy & paste that I'm not sure should be there (which I've omitted here).


  • Closed Accounts Posts: 5,761 ✭✭✭cdebru


    lxflyer wrote: »
    Well I would argue that it is a schedule. It may not be on your boards, but it is the planned schedule. Otherwise the predictive times and journey planner are meaningless.


    It is only a schedule if it is supplied to the drivers and they are asked to adhere to it and provided with the means to adhere to it. As none as that has not happened it is not a schedule it is indicative of average journey times that is all.


  • Registered Users, Registered Users 2 Posts: 18,283 ✭✭✭✭LXFlyer


    cdebru wrote: »
    It is only a schedule if it is supplied to the drivers and they are asked to adhere to it and provided with the means to adhere to it. As none as that has not happened it is not a schedule it is indicative of average journey times that is all.



    OK - I'm not going to argue with you as it is clearly pointless.


  • Registered Users, Registered Users 2 Posts: 35 PadelCreekMan


    The Transport for ireland app or the Dublin bus app will let you know if your bus is earlier than you expect. In the case of the 46a I wouldn't be too worried. They're running every 10 mins. You won't be that inconvenienced if you miss the exact bus. There will be another along very shortly. Probably running early too.


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