N22 - Macroom to Ballyvourney (Macroom Bypass) [open to traffic]

No need to debate it - the speed limit on 2+2s is 100 and it's not going to change.

I switch on the cruise control for this very reason

I always use cruise control on motorways and the better N roads. Stops that creep where you find yourself matching the speed of the car in front or whatever.

Drove the full length of the N22 yesterday, both directions, for the first time since the extension opened. Fine road, pleasure to drive. Thought the camber was off twice when travelling West.

Google maps tried to take me off at the no longer existent roundabout !

I presume it's a speed van alert. Haven't heard of one.

AFAIK the motorways had a design speed of 160kmh with a speed limit of 120kmh, so I'll guess the 2+2s are designed for about 130kmh with a limit of 100kmh. Its a safety margin so its understandable.

Just stick on the limiter or the cruise.

The following is from the current TII manual on rural road design. I’ll just leave it at this.

That's a very narrow perspective. Sure speed does not kill. However, the faster a vehicle is traveling when sh1t happens the higher the chance of its occupants ending up dead.

A well-engineered road is only one-third of the equation, what about the capability of the driver and the capability of the vehicle? There's a big difference between a very experienced driver in a well-maintained BMW M5 and a young lad/lass in a half-clapped-out Toyota Corolla traveling at 130km/h.

I'm not suggesting people should exceed the 120km/h speed limit, just using the 130km/h to reflect what is often the actual speed sometimes seen.

There are a number of 120Kmh sections of the M8 that are most certainly not fit or designed to be driven at anything like 160kmh. (And I am not referring to the 100Kmh Glanmire Bypass)

Totally agree with your suggestion abut the limiter or cruise control. I do it every time.

They aren't "on ramps", they are T junctions where traffic joining the new road is required to stop.

From the scenario you describe, it is most likely the "poor soul" who would be the cause of such an accident rather than someone on the main road speeding or not paying attention to the road. The person already on the road isn't required to move to the right lane and the driver joining shouldn't be expecting them to. The driver joining has to wait for a suitable gap in traffic before moving out.

Manners aren't laws, and the law says they are not required to move, and this is consistent with every other rule regarding right of way.

Most drivers do move out when they can in order to allow cars joining to do so more safely, but if you are the car joining you must assume that they will not make room for you, and wait for them to pass.

I never said I think drivers will restrict themselves to 100kph.

The person already on the road isn't required to move to the right lane, that is a fact not an opinion and remains the case whether it is courteous or not. I was making the point that drivers looking to join the road can't assume that others already on the road will move over, they need to wait for it to actually happen.

The poster I quoted seemed to think that only someone not paying attention would not move to the right lane which is nonsense, that driver is fully entitled to remain in the left lane.

The word, 'if' is what I used.