Final answer:
Warning signs are placed near freeway entrances to alert drivers to traffic entering the freeway, promoting safety by encouraging drivers to slow down and be aware of their surroundings, especially in pedestrian-heavy areas.
Step-by-step explanation:
Warning signs are placed near freeway entrances to alert you to traffic entering the freeway. These signs are crucial for maintaining safety for both the drivers on the freeway and those who are entering it. For example, many vehicles may disregard the posted speed limit and speed through the intersection, endangering both themselves and others. The presence of a warning sign serves to mitigate this risk, encouraging drivers to slow down and be aware of entering traffic.
Furthermore, pedestrian safety can be significantly compromised when vehicles do not adhere to traffic regulations, such as speed limits. In areas with heavy pedestrian traffic, such as near a campus, it is especially important to control vehicle speeds to prevent accidents and ensure safe crossings. In this regard, traffic signals play a vital role by regulating vehicle flow and providing safe crossing points for pedestrians at the appropriate times.