Final answer:
The suggested advanced warning sign spacing for a Freeway/Expressway is typically around 2000 feet.
Step-by-step explanation:
The suggested advanced warning sign spacing for a Freeway/Expressway is typically around 2000 feet. This distance allows drivers enough time to react to upcoming changes or hazards on the road ahead. Advanced warning signs are crucial for driver safety and help to prevent accidents.
These signs are strategically placed at specific distances from the point of the hazard or change, to give drivers enough time to adjust their speed or lane position. For example, if there is construction work ahead or an upcoming exit, drivers need sufficient time and space to make the necessary adjustments.
Overall, a spacing of 2000 feet is commonly recommended for advanced warning signs on Freeways/Expressways to ensure the safety of all drivers on the road.