The daily traffic jam on my local high street has inspired me to think about a way to turn a traffic jam into an opportunity to a way to create safer cycling. This solution is win-win: car drivers get to stay in their cars while facilitating the creation of more traffic-free cycle routes in and out of our cities.
The concept is for all cars to be fitted with a light-weight section of Universal Cycle Flyover, designed to fit most any vehicle. Cars approaching a traffic jam simply park close enough to the next car to to enable a continuous connection for the cycle deck.
(The scheme shows a cyclist on a racing bicycle. Of course other types of bicycle would be encouraged, I just started the sketch too close to the top of the page to fit a more upright riding position.)
You could adapt Thomas Heatherwick’s rolling bridge idea. Enclosed within a car top box and rolled out in a few minutes.