Instead of counting individual cars, traffic is modeled as flow in a series of cells.

While he counted cars, Richards watched the students come and go.

That's the mechanism you drive over that counts cars in a parking lot.

"We have auditors out there and they count cars," he said.

He counted only three police cars, just enough to keep drunks away from men trying to get their work done.

'You ought to go out there and start counting red cars,' Arnie said coldly.

The others had gained the far bank now and were counting cars on the freight.

It's got me sitting here counting cars on the freeway.

So what are you doing to keep busy, sides counting cars on the freeway?

The children opened bags of M&M's and counted red cars on the road.