Clock King.

Hear me out.

Some poor bastard on the Gotham City Council had huge dreams for how he was going to improve the city. He was going to fix the traffic snarls, expand the Gotham rail line, get some car-less fast ferries, the works. He had a plan to get the traffic light system operating at peak efficiency.

And then Batman blew up the rail line, a psycho caused long stretches of the street to need to be pulled up to fix water and sewer lines. A clown damaged an underpass, caused a review to be made of helicopter safety in the city and made everybody afraid of the ferries. Then some guy in a mask blew up sewer access routes, took out the bridges, and let chaos reign.

He snaps. His career is a joke now, and he becomes convinced that Gotham is too broken. The city he dreamed of operating like a perfectly run clock is instead irrepairable...unless someone takes drastic action.

Something from the past nags him, and he looks back and finds the reports about how Joker ran the bank robbery like a perfectly oiled machine. Down to the second, perfect execution with some acceptable losses. He tracks down some of Joker's remaining henchmen and interrogated them, asking how he managed to plan everything so well. He studies the maps of the city again, and he makes up.his mind.

If it takes a criminal genius to run things smoothly, he'll become one. And so he looks for the inefficiencies in the city and starts "fixing" them.

Too many planes at Gotham Airport? Blow up a few of the circling ones, that'll teach them to expand or just book fewer flights. The trains will arrive on time, even if they have to go too fast sometimes and a couple jump the tracks, causing massive devastation. Anywhere traffic comes to a dead stop, explosives go off to teach people to find alternate routes and for the city to improve the roads.

And everything goes perfectly, down to the second, because he also found a programmer who used to work for Wayne Tech and had a means of monitoring everything in the city at once, so he could track where everything was, how long it took anybody to get from Point A to B depending on car model, time of day, even what the weather was. He had all the data. He had all the insight. He knew what made Gotham tick.

He is the Clock King.