There was an article in The Economist about improving road transport in India with clever logistics. If I remember correctly, one of the significant savings was

There was an article in The Economist about improving road transport in India with clever logistics. If I remember correctly, one of the significant savings was that by swapping drivers every few hundred miles you can arrange for each driver to sleep at home most nights, which makes the job more pleasant, so you don't have to pay them so much.