This is the inside of an airconditioned bus running between Yangon and Mandalay by "Shwe Man Thu" company. Almost all highway buses do not have toilet. They do stop at about 4 or 5 places, depending on the route, for toilets and refreshment.
In Myanmar, due to narrow and bumpy roads, you could expect the average speed of about 50 km per hour or even less when climbing Shan mountains.
The buses normally provide drinking water, tea or coffee plus a meal at restaurants.
