In some instances, most definitely yes! There are areas of the LA basin that are reasonably flat and commuting by bicycle is becoming more popular. In my partic

In some instances, most definitely yes! There are areas of the LA basin that are reasonably flat and commuting by bicycle is becoming more popular. In my particular instance it involved going through the Sepulveda Pass (elevation ~1000ft/300m) and back again. Most people would not consider it reasonable to use a bike for that trip: 1) the most direct route is the enormous 12-lane 405 freeway which forbids bicycles, 2) indirect routes are windy canyon roads that have drivers screaming through them in Porches at 80mph. Even if you were physically fit enough to make the trip it's still too dangerous.