Toll roads, toll bridges, toll tunnels are often used primarily for revenue generation to repay for long-term debt issued to finance the toll facility, or to finance capacity expansion, operations and maintenance of the facility itself, or simply as general tax funds. It can be either distance or time based fee, or to charge certain classes of vehicle, fuel sources or more polluting vehicles.

Road tolling technology comparison

Gate based

  • Entry-to-exit point validation
  • High infrastructure cost
  • High maintenance cost
  • Applicable for single road tolling
  • Generates traffic jam at gates
  • Decreases road safety

On board unit based

  • Distance based validation
  • High infrastructure cost
  • Moderate maintenance cost
  • Applicable for multiple road tolling
  • Not generates traffic jam - free flow
  • No effect on road safety