I would suggest going more to energy conservation. Replace outdated fluorescent, incandescent, high pressure sodium, mercury vapor, and metal halide lights on roadways, signage, and in buildings with LED lamps.
For roadway and sidewalk lighting, there are LED light poles with integrated solar panels and helical wind turbines.
I would also suggest wind and solar power for city buildings.
This will be more expensive up front, but reduced energy costs will help to recover the costs of the new lighting, plus allow more room in the budget later.
This could also be a way to create new jobs, even if only temporary ones.