Final answer:
Dedicated bicycle or bus lanes are reserved for specific transportation modes. Traffic signals at intersections can improve pedestrian safety by regulating traffic flow.
Step-by-step explanation:
The lanes in question are most likely referring to dedicated bicycle lanes or bus lanes that are reserved exclusively for non-motorized vehicles or certain authorized vehicles. Motorized vehicles are typically prohibited from driving in these lanes to ensure safety and promote alternative transportation methods. These lanes are part of urban traffic management which aims to increase pedestrian safety and regulate vehicle speed. The installation of traffic signals can manage flow and improve safety at busy intersections by providing dedicated crossing times for pedestrians and non-motorized traffic, reducing the need for them to navigate through moving vehicles.
The subject of this question is Social Studies. This question relates to the topic of traffic regulations and safety. The question highlights the fact that motorized vehicles are not allowed to drive in certain lanes and can only cross over them when turning at intersections. This is a rule implemented to ensure the safety of pedestrians and other road users.