some long-distance buses will be available. if not, after driving for 2-3 hours, they will stop at the expressway service area to rest, and passengers can get off and go to the toilet.

According to the owner's guide website, some buses do have long-distance buses, but the sanitary conditions are usually unsatisfactory and they can only be used reluctantly. If there is no toilet, usually after driving for 2-3 hours, passengers will stop at the high-speed service area to rest, and passengers can get off and go to the toilet. Even if you take ordinary provincial roads or large roads, drivers will stop at regular intervals for passengers to rest and go to the toilet. Buses with good facilities have their own toilets, but for vehicles without toilets, drivers will stop in the rest area every once in a while to give passengers time to go to the toilet. According to the General Code for Design of Traffic Engineering and Facilities along the expressway, the average distance between service areas in expressway is not more than 51 kilometers, and the maximum distance is not more than 61 kilometers. The facilities in these service areas include accommodation, catering, refueling and auto repair.