Traffic lights backed up by solar power – why don't we all have these already?
I know that whenever there’s a big storm in Seattle, the city grinds to a halt, not because people don’t know how to drive in the rain, but because they can’t seem to deal with outed traffic lights. Simply treating every intersection as a stop sign is wearying; why don’t we have solar-powered backups for nighttime and emergency use? Retrofitting would be easy and cheap, and it’s guaranteed to make disasters and blackouts a little bit easier on everybody when the time comes.
[via Treehugger]