Which area are vehicles transporting fuel prohibited from driving through?

Vehicles transporting fuel are prohibited from driving through concourse underpasses primarily due to safety regulations aimed at preventing the hazards associated with fuel transportation. Concourse underpasses are typically areas with high pedestrian traffic and limited space for maneuvering. The potential for accidents in these confined and crowded environments increases significantly when hazardous materials like fuel are involved.

Restricting fuel transport vehicles from concourse underpasses helps to mitigate risks, ensuring the safety of passengers, employees, and the overall airport operations. In contrast, other areas like service road underpasses or terminal access roads may be designed to accommodate larger vehicles under specific safety regulations, and open-air parking lots generally do not present the same level of risk compared to concourse underpasses.