The “Complete Streets” movement presses a growing number of cities to plan for multimodal transportation. 
According to an article in the December New Urban News, "In 2003, bicyclists intent on obtaining safer routes for cycling concluded that they needed a new slogan. Instead of continuing to appeal for ‘routine accommodation’, they started demanding ‘Complete Streets.’
This new catchphrase — and the coalition that united behind it — are helping to usher in benefits for cyclists and pedestrians alike.
A lot of cities have recognized the problem and are trying to create real change. The emphasis varies from one locale to another, but the central goal is ‘policies and actions aimed at producing streets that are safe, accessible, and convenient for all users.’ Among the municipalities that have accomplished the most are Seattle; Portland, Oregon; Fort Collins, Colorado; and Charlotte, North Carolina…"
(before and after) 
This past summer, the Transportation Research Board sponsored a symposium which featured session on retrofitting for complete streets, designing streets for transit, a complete streets field trip and workshop, and many other relevant sessions. View the schedule and papers produced for the events. Be sure to see John LaPlante’s paper (pdf) “Retrofitting Urban Arterials into Complete Streets.”
Even the National Conference of State Legislators has gotten in on the action, recently completing a briefing paper on complete streets in order to help state legislators and their staff respond to the demand for policies across the country (available for free to NCSL members and for a fee to the general public).