Depending on the distance to the job, you can have the employee show up at job site to start thier day. Or provide per diem to cover hotel and meals while they stay out of tow to be closer to the job site. 50 miles is a common distance for this determination. I have also seen some companies that use 75 miles as thier distance.
As kentvw found out mandantorly requiring employees to show up at the shop then travel is much more costly and opens a lot of labor law and insurance issues. That 10 passenger van could be required to be licensed for and insured a common passenger carrier just like a bus. That is expensive insurance.