Here is an electronic replacement for road flares.

http://www.powerflare.com/

I have used tons of regular flares over the years, they are a pain in the butt. An obvious fire hazard, and and you have to breathe the crap they produce when they burn, and you have to keep laying them out as they don't last long.

These little guys are electronic, no fumes, no fire hazard (even approved in explosive environments ).

They are an investment to buy up front, but after that you only have batteries.

They are also considerably smaller than a case or two of flares.

I bought five or six of these for the bus via a group buy from the wife's employer.

Law enforcement is switching to these, and they are a great idea.

I will bring these to LHC if you want to see them.