These vehicles cannot navigate the Holy City.

The demonstrators filled the street with people and marched back and forth, forcing the vehicles to navigate slowly through the crowd.

Visitors who drive need a pickup or four-wheel-drive vehicle to navigate the unpaved roads leading to the park.

The most common such arrangements are public highways, where appropriately licensed vehicles can navigate without hindrance.

All of the teams face the same hurdles: their vehicles must see, steer, accelerate, brake and navigate without outside assistance.

During the show, 10 vehicles will navigate the track at any one time, and an additional 26 Jeeps will be on display.

Our own vehicle navigates a curve, and suddenly it is as if we have trespassed into the shattered heart of a no-man's land.

The power of machine-learning software was demonstrated earlier this year during the Darpa Grand Challenge, which pitted dozens of research teams as their robotic vehicles independently navigated a desert course.

The desert itself, particularly near the gulf coast, is crisscrossed by camel tracks that a four-wheel-drive vehicle can navigate.

Vertical curves are used to provide a gradual change from one road slope to another, so that vehicles may smoothly navigate grade changes as they travel.