6 ms·Ask the driver, they will know.by beardyw 2y agoAsk the driver, they will know.betimd 2y agoHah :D, drivers always know but some of 'em are lazy!JohnFen 2y agoEven so, I'm willing to bet that having the drivers count passengers and report that count would be more accurate and less expensive than a technological solution.betimd 2y agoThe case is for a tech solution.TowerTall 2y agoPut up a cell tower. Count the number of cell phones. Most people cary a phone