What if the wires were as free to use as the roads themselves? Instead of just one city trolleybus every few minutes you could have a whole world of privately owned In-Motion Charging vehicles. Imagine the wires feeding vans, trucks, private bus lines, anything you don't want shitting diesel fumes as it idles in traffic.

This obviously doesn't make sense if electricity generation is constrained or expensive, but as fusion power comes online and energy gets an order of magnitude cheaper it could become worth it for cities to just eat the cost and reap the other benefits, or have some other higher level government subsidize the programs.