A Princeton sociology doctoral candidate tells the Los Angeles Times that electronic monitoring is an incomplete solution to a serious public safety problem of truckers pushing their limits.

I’ve spent the last three years researching truckers’ compliance with federal regulations limiting the hours they can work. I’ve spoken with hundreds of truckers and other industry stakeholders to try to figure out what drives truckers to work past the point of fatigue, and what can be done about it.

Truckers don’t work without sleep for dangerously long stretches (as many acknowledge having done) because it’s fun. They do it because they have to earn a living. The market demands a pace of work that many drivers say is impossible to meet if they’re “driving legal.”