Thought I’d kick start this community with a question.
For me (Madison WI) we have some pretty good signal engineering, at least for North American standards. Signal cycles are getting shorter and shorter, leading pedestrian intervals are pretty much standard for every intersection Traffic Engineering touches, and no turn on red and protected left turns are getting added more and more. We’re also adding (good) transit signal priority with BRT. TE also recognizes that smaller intersections (fewer lanes) can lead to better intersection efficiency due to shorter cycle times, which is great.
Lately one of the problems is we’re limited by the software the traffic signal vendor computers have. For example, shortening read clearance times remains a challenge (https://www.youtube.com/watch?v=7KPGVP85WpU) because red clearance intervals are a fixed time in the signal vendor software and not table-based. :(
Also don’t wanna dox myself, but the city’s been building protected bike lanes at a breakneck pace. There’s still tons of gaps in the system, but even in the relatively short time I’ve lived here biking’s gotten noticeably less scary – which means more bikers!