Keeping that in mind: would a good solution not be to have electric busses with batteries, which also have the umbilicle on a spring loaded or electronically actuated system to raise it to connect to the wires? This would allow said wires which would normally connect a trolley system to be placed along main strips while still allowed busses to travel along lesser used streets. The mobility of busses with the power system of trolleys to ensure they don't have to stop to recharge or refuel, they can just connect on the main strip and keep their battery banks full.

I'd even say with something like this a supercapacitor bank to quickly charge those to 100% on connection then allow those to charge the batteries. This would help to reduce charge cycles on the battery and help to keep the batteries in a constant charge or constant discharge state instead of having every bump in the road disconnect the batteries from the grid.