also, if you have a grid with a 16x16 with a point in the middle it would need to travel ~4*1.4 to reach the furthest point on the grid. in order to 1&#x2F;2 the time it takes you need split into 4 quadrants and add 3 more cars. if you want to half the time again your looking at 17 cars. so to go from 10 minutes down to 5 minutes down to 2.5 minutes it takes ~4 times as many drivers each half. rough calculation. if anyone would like to add a better approximation I love to hear it.