[larrydag]

This is something I love to think about when driving on the highway. I've read so much on it. I've also had some thoughts on recommendations to solve it

1. Divided lanes for 3+ lane highways. Basically a modified HOV lane but no occupancy restriction. The far left lane would have lane dividers with openings every 5 miles (or 3 exits). The middle lane opening every 2-3 miles (or every other exit). The idea is that it would force a certain average speed of traffic and hopefully distance between cars in the respective lanes.

2. Smart roads to adequately distance cars from each other. Either a driver assistance signal or actually controlling the internal cruise control system.

[briffle]

I believe there are highways designed like #1, I seem to remember visiting the NY/NJ area, and I think it was the NJ turnpike that was this way. Several lanes of "through traffic" with a wall, and every few miles, it merged with a few lanes on the right of "getting off/on soon" lanes.