Final answer:
Turn lanes and traffic signals are essential at intersections to manage traffic flow and ensure safety for both drivers and pedestrians, especially in areas with high traffic volumes.
Step-by-step explanation:
Turn lanes at an intersection guide traffic movements to ensure safety and efficiency for all road users, including drivers and pedestrians. In situations where traffic in the left lane must turn left, and traffic in the adjoining lane may turn left or continue straight ahead, the design is typically implemented to manage high traffic volumes and reduce potential conflicts. Drivers are expected to pay attention to these directions and make the appropriate lane choice based on their intended route.
The presence of a traffic signal greatly contributes to the orderly movement of traffic. It forces vehicles to slow down, adhering to the posted speed limit, and provides structured phases for vehicular turns and to allow pedestrian crossings in a controlled manner. Pedestrian safety is enhanced because they have specific times to cross, which reduces the need for them to 'dodge' traffic.
With the increase in traffic flow due to nearby manufacturing plants, business developments, and routing for events, the complexity at an intersection can increase. Therefore, incorporating traffic signals and properly designated turn lanes is crucial for managing the increased volumes effectively, thus fostering a safer environment for all.