Solution: Let the train road be x kilometers long and the car road be (x-40) kilometers long.

Equivalence relation: car travel time-train travel time =0.5 hours+1 hour.

(x-40)/40 - x/60 =0.5+ 1

Solution: x=300

x-40=300-40=260

A: The train road and car road of A and B are 300 km and 260 km respectively.