Read this e-book, “Confessions of a Recovering Engineer” and the writer talks about how completely ineffective and inefficient site visitors lights are. If it have been as much as him, he would take down completely all of them from the US. They create congestion ON PURPOSE. They exist solely as a result of we’re adamant that we’ve to journey at 30-45 mph on streets. If we simply went slower on streets (and made them thinner in order that they didn’t induce individuals to journey as quick) and eliminate the horrible “Stroad” (road/highway hybrid that’s the futon of roads and streets) then we might have quicker commutes whereas additionally having a downtown that’s lovely and walkable.