I have used Anthony Downs, "Stuck in Traffic" for three years for a short course in urban transportation planning. Students find it clear and yet realistic on how simplistic solutions like "building more highway lanes" have unintended consequences that cancel out the gains.He also looks at urban planning solutions, and shows that some gains might occur from increasing housing densities from very low to low or moderate, but most other solutions have little effect.
Finally, the most powerful solutions, including higher gasoline taxes, increased public funding for transit, and tolling on highways are also the least palatable politically.
Downs, an economist, is strong on the economic aspects of transportation, and has a good grasp on the planning issues. The book does not cover any of the engineering details of possible schemes.
Overall, an clearly written and strongly argued book.
Jim Mars School of Urban and Regional Planning Ryerson Polytechnic University Toronto, Ontario, CANADA