@ajsadauskas induced demand is a stupid concept. If adding options increases traffic that means your.city is not serving residents. The point of a city is all the places people can get in them, if you have no place to go then move to Montana or someplace else with noplace to go. Note that I didn't say add more lanes, lanes are not very cost effective'
The reason adding one more lane is wrong is by the time slowdowns occure people are already packing cars in 6 times more dense than is safe and so you need not one more lane but 6 times as many lanes. That is expensive no matter how you look at it. (And probably requires layers of bridges and tunnels)