Hacker News Reader

> - Having mixed bike/car roads where the speed limit is 30 kph.

Yeah, 30kph seems to low (hell, even I feel the 50kph limit in cities here is too low) to be a road limit for a mixed bike/car road. I think isolation is a better strategy and will lead to less accidents due to nervous drivers having their own lane instead of limiting themselves to 30kph behind some biker.

View on HN

Here, 30kph is the default for dense city streets, with 50 for the larger roads where bikes get their separate lanes and 70 or higher for large roads carrying large amounts of car traffic where bikes cannot go.

The best solution is a mix of efficient road design, isolation, and speed limits where they make sense (which is pretty much everywhere except the through-roads). A large amount of 30kph bike/car roads are fine if the road network and city zoning is well-optimized.

Reply on news.ycombinator.com