Alternative combination buses can be a passenger/cargo module/container mounted on a truck chassis, or a bus with a large open or closed in cargo area known as a bruck.
Combination buses are built by installing a complete box body equipped for transporting people onto a truck chassis.
Some companies such as Ha'argaz manufacture combination buses by installing a partial bus body on an all-wheel-drive truck chassis.
They allow you to leave quite far from populated areas, while it is relatively comfortable to transport the entire workforce with the possibility of spending the night.
In some such trucks, sleeping places are provided, since the work shift can last up to a week, while this can happen in the conditions of a polar night with frost up to -50 degrees Celsius (-58 Fahrenheit).