Home › Forums › Module 2 – Linear Infrastructure: Lanes, Paths, and Streets › Let’s explore and discuss local examples of cycling infrastructure › Reply To: Let’s explore and discuss local examples of cycling infrastructure
Replying to post #26094 from Alistair.
This road looks all to familiar in layout to a lot of roads we have in Dublin!
a) What incremental improvement would you recommend for this particular example
You already identified the issue, which is that by ending the segregation of the bike lane from car traffic and creating a left filter lane on the other side of the bike lane, cyclists are left exposed to cars crossing from one lane to the other.
The fix is relatively straight forward. Fill in the left filter lane so it becomes part of the pedestrian path, extend the protection of the cycle lane right up to the lights. The traffic lane to the right of the cycle lane becomes a left turn lane. Create concrete islands at the junction to protect both cyclists and pedestrians, and to ensure drivers have to take a wider curve around the corner. It would be preferable if a cycle traffic light could be installed, giving cyclists a 10 second head start on green so that they could clear the junction before left turning cars got their green.
b) What kind of political and bureaucratic opposition this improvement would likely encounter
I think it’s likely to be opposed because it takes road space away from cars and reduces two lanes of traffic travelling straight ahead (with one funnelling left turning traffic to the left filter lane) to one lane travelling straight and one turning left. It may be deemed to slow the flow of traffic and is also likely to meet opposition at the possible cost of installing concrete islands, a cycle traffic light and reconfiguring traffic sequencing.