A city’s transportation department plans to reduce traffic congestion by adding more bike lanes on major roads. The department argues that this will encourage commuters to switch from cars to bicycles, thereby decreasing the number of vehicles on the road during peak hours.
Which of the following, if true, most strengthens the transportation department’s argument?The city plans to add more bike lanes to reduce congestion. The claim is that safer, more available bike lanes will make commuters switch from cars to bikes, cutting the number of cars during peak hours.
(A) Many commuters who live within 5 kilometers of their workplace currently travel by car.
This helps a bit by showing there are short trips that could be biked, but it does not show they would actually switch because of bike lanes.
(B) The cost of constructing bike lanes is lower than expanding existing roads.
Cost efficiency does not strengthen the causal link between bike lanes and reduced congestion.
(C) Surveys show that a large number of residents would consider cycling to work if safer bike lanes were available.
This directly supports the department’s key assumption: adding bike lanes leads to people switching from cars to bikes.
This most strengthens the argument.(D) Some major roads already experience heavy bicycle traffic.
This shows biking exists, but it does not show car commuters will switch or that more lanes will reduce car volume.
(E) Weather conditions are suitable for cycling for most of the year.
This supports feasibility, but it is less direct than (C) because it does not connect the policy change to commuter switching.
Answer: (C)