Which of the following features enhance pedestrian access at the described locations?

The correct choice is the implementation of fences and tunnels. These features are specifically designed to improve pedestrian access and safety in areas with high traffic or obstacles. Fences can help in guiding pedestrians to designated crossing points, reducing the likelihood of accidents by preventing them from wandering into dangerous areas. Tunnels, on the other hand, provide a safe passage for pedestrians beneath roadways or other structures, ensuring they can cross busy intersections without the danger of oncoming traffic.

In contrast, bike lanes enhance cycling access but do not directly improve pedestrian routes. Parking facilities primarily benefit vehicle access and may not significantly impact how pedestrians move through an area. Traffic lights can control vehicle flow and improve safety for pedestrians at crossings but do not provide direct enhancements to pedestrian pathways like fences and tunnels do.