where i'm from (massachussetts/rhode island) one state (i never remember which) has a state-wide ban on u-turns of any sort... both states way over use the "no left turn" sign. and we have our share of the standard 4-lane undivided road, jersey-barrier ave, grassy noel-barrier ave (boulevards), the whole lot... one thing you see quite frequently are the jersey jug handles... i love em and wish there were something in simcity to build one and mandate no-left-turn... for those who don't know, a jersey jug-handle is a right hand turn, almost like a highway exit, except for an avenue, and it then loops back in and crosses the ave at a perpindicular intersection. Since avenues are designed as higher traffic roads, they want to keep the speed on them high and they want to stop the traffic as infrequently as possible, but when the roads get too congested for someone to smoothly make a uturn and merge onto oncomming traffic (and i don't know about all-y'all, but here in southern new-england, ain't nobody stopping for nothin unless they have to... so there's no "please let me go" around here... you either force your way in or you sit there until rush hour is over)... there has to be a way to keep the ave from getting perminantly backed up for hours waiting for people to make their left turns... i got a little sidetracked there... but since aves are designed for high through traffic, the frequency of people coming onto the roads or u-turning is (by design) much less frequent than the people trying to continue straight... and so a simple motion sensor light at a pair of jersey jug handles services u-turns on a median ave MUCH smoother than left lane u-turns. as a side note (almost knowing it's impossiblity factor) it would be awesome if you could click on an intersection and select the style of traffic light... standard time, timed delay, sychronized, or motion sensored... i also wish that you could continue with a grid pattern on either side of an avenue, lined up with each other for the roads i DO want to go through can, have all the roads on either side of the ave intersect with the ave with street buds, WITHOUT having the streets cross the avenue... like so: horizontal, ave first verticle crossing street, second verticle non-crossing street.... | | ----------- | ----------- | | finally... what would also be super cool would be road & street avenue over-passes, much like a ground-level highway... a pedestrian overpass would rock too...
