This can be considered the silent version of tricycles, since bicycles are used, there are a lot of Pedi cabs around, a form of making a quid for the locals as a motorized tricycles is beyond there reach financially
This environment friendly type of transportation is very common in places with a passenger and cab attached to the side or in front. The driver uses pedal power to transport passengers. Rates are very cheap to travel. Normally you will see Pedi-Cabs on side streets and some subdivisions which do not allowed tricycles to enter.