There is talk about the prospect of building a bridge on 11th st. I know that solving the problem of traffic is harder than just building a new bridge. It takes building new ways of transportation. Looking at why people are driving so much, is it to get to work? To school? Or just to get milk? Building more roads to fix traffic problems is like buying bigger pants to fight obesity.
Plan communities where everything you need is close by. Encourage foot, bicycle, and other modes of travel by making roads safe and accessible to all modes of transportation. Encourage people to carpool, and make bus service regular and reliable. It is always hard to change habits but as a community we need to see that other modes of transport are what is needed, not more roads.