In my beautiful hometown of Philadelphia they have a novel way of repairing potholes that I've yet to observe in other cities:

1. Do nothing for 9 months. This allows the pothole to mature until ready for step 2.

2. Put a traffic cone in the pothole.

3. After a couple weeks of public notice (traffic cone) dump hot asphalt into the hole, making sure to top off several inches above street level.

4. DO NOT WAIT for asphalt to cool down before opening the street. This allows for asphalt to stick to tires, shoes etc.

5. Make sure to leave a significant bump and don't compact the asphalt so next winter it will open up again.

6. Make sure to put any utility covers (manholes, drains etc) directly in the wheel path for maximum damage.

7. Profit!

Philadelphia is blessed by several feet of sub-street layers (stone fill, belgian block, concrete backfill, and terrible asphalt), embedded rail, pipes, and utilities that are all owned and managed by different local, state, and private entities. Oh and fairly wide temperature swings throughout the year, generous precipitation, salt, and let's not forget the drivers themselves. It's a miracle the roads are in as good a shape as they are - but it does have a traffic calming effect :)