[boxchain]

European style traffic lights (red > red/yellow > green) to give you time to start your engine. And a big yes for countdown timers.

large radius turning lanes for major intersections.

Traffic lights that take into account the amount of traffic actually there. There are a couple lights on the main street by my house that go red for only ~15s. The cross streets are one lane residential, and the main street is 3 lanes each way. It's great, if I see it turn red even 3-4 blocks ahead, I have time to pre-brake, EOC, and bump start and hit the light keeping up plenty of momentum. More like this please.