What is the consequence of reducing the width of a roadway to less than 10 feet?

Reducing the width of a roadway to less than 10 feet typically leads to restricted vehicle access. This narrower roadway can make it difficult for larger vehicles to navigate safely, as they may struggle to pass through without risking collisions or encroaching on adjacent lanes. Additionally, emergency vehicles may have challenges accessing areas with such narrow roads, which can affect response times in critical situations. Narrow roadways might also necessitate traffic calming measures, which, while aimed at reducing speed, can further restrict the flow and accessibility for vehicles.

In contrast, the other options illustrate scenarios that are generally not associated with reduced roadway width. Increased traffic speed is unlikely because a narrower road often prompts drivers to slow down for safety reasons. Improved pedestrian safety might be a concern; however, narrowing roadways does not inherently enhance pedestrian safety and can in some instances lead to increased risk if sidewalks or safe zones are not adequately maintained. Lastly, increased parking space availability is not a direct consequence of reducing roadway width, as that typically pertains to the overall design of parking strategies rather than the dimensions of the road itself.