Final answer:
The 'two way traffic' warning sign indicates that traffic flows in both directions on the road ahead. This sign is critical for reminding drivers to be cautious and for pedestrian safety at busy intersections. Traffic signals can further enhance safety by controlling vehicle speeds, assisting pedestrian crossing, and reducing accidents.
Step-by-step explanation:
The two way traffic (warning) sign is an important indicator that informs drivers that they are approaching an area where traffic flows in both directions. Typically, this sign is found on roads where the direction of the lane changes from one-way to two-way traffic. It reminds drivers to stay on the right side of the road and be aware of potential oncoming traffic. This sign plays a crucial role in pedestrian safety, especially near busy intersections like the one described where students and others must navigate across traffic.
Moreover, the discussion about the necessity of installing a traffic signal at a high-risk intersection shows us that beyond warning signs, active traffic control measures can greatly contribute to safety. The reasons for installing a traffic signal include reducing vehicle speeds to adhere to the posted speed limit, allowing pedestrians to cross at appropriate times, and ultimately reducing the unacceptable number of traffic accidents and their severe consequences, such as loss of life.