Question

length of the highway?
Van stes
A
3
4
towards each other.
A car started from Town P and travelled towards Town Qat 70 km/h. At the sale ou
from Town Q and travelled to Town Pat 60 km/h. After 2 hours, they were 65 km apart, stillt
(i) What is the distance between the two towns?
(ii) After how many hours of travel would they cross each other?​

Answer 1

Answer:

For a highway built to the minimum standards of the US Interstate Highway System, it would be 104 feet from one right-side pavement edge to the other in flat to rolling terrain, and 78 feet in mountainous terrain. The requirements include 4-foot left shoulders, 12-foot travel lanes, 10-foot right shoulders, and yellow-line to yellow-line median widths of 10 feet in mountains and 36 feet elsewhere.

If you’re talking undivided four-lane numbered highways without shoulders, these can be as narrow as 49 feet (12-foot lanes and a one-foot separation between the two solid yellow center lines).