Which statement about collectors is NOT true?

The statement regarding collectors that is NOT true is that they carry 75% of truck traffic. Collectors are designed to facilitate shorter trips and connect local roads to major highways, playing a role in distributing traffic from more significant routes to smaller, more localized areas. While they do accommodate truck traffic, the proportion attributed to collectors typically does not reach as high as 75%. That figure is exaggerated, as truck traffic is often concentrated on arterial roads and highways designed for heavier and more continuous traffic flow.

In contrast, collectors indeed serve shorter trips and can comprise around 20% of the overall highway mileage. The statement that collectors carry 15% of all vehicle travel aligns more realistically with their design and usage patterns in the transportation infrastructure, allowing for smooth transitions from local travel to broader route systems.