LED markers placed on the road edge provide guidance to vehicles and of the evacuation route.

Tunnel Guidance Markers (or Smartstuds) are placed on the road edge and provide high contrast delineation to warn drivers of road limits and shoulders. Markers can serve as a backup to primary illumination devices and provide clear guidance to vehicles in the event of lighting failures or emergency circumstances. The same system can function as evacuation route lighting during emergencies, efficiently and effectively directing drivers or passengers towards emergency exits and away from hazards.