Highway Exit Sign Radio
May 3, 2008

Tune your radio in to a standard station (like 1000 AM)
In a radius about 2 miles from an exit, a hyper-local radio broadcast is generated. Local businesses at that exit, their hours of operation and their distance from the exit are read over the air in a continuous loop.
Paid for (obviously) by advertising.
This expands the exit signage system, providing easier updates and longer range than the road signs.

The messages can be changed and customized based on date, day of week, and time of day.
Management is through a website and remote updates are instant.
The broadcasts will also be available on the web and through a toll-free phone call system, allowing access from further away.