Routine and emergency maintenance takes place frequently in utility tunnels.

Sewers and aqueduct tunnels must be regularly drained and thoroughly inspected. Personnel, vehicles and equipment, including communications, are lowered into the systems to complete inspections and repairs. During these operations use of current communication systems, such as UHF radio, is limited to line-of-sight and crews must use multiple radios to hop the signal horizontally and then vertically.

Vital Alert can provide portable, quick, easy to up TTE communication during routine maintenance and emergency repairs of aqueducts, sewers and various other utility tunnels.