Performing a job similar to the taxi is Thailand's Tuk Tuk. So named because of the sound of their engine, these are motorized rickshaws and are popular with tourists for their novelty value and locals for their ease and speed in navigating Thailand's busy urban streets. They are occasionally faster than taxis in heavy traffic as weaving in and out is easier, but generally about the same. Without any luggage, 3 people can fit into one fairly comfortably. It is highly advised the passanger negotiate the fare before agreeing to ride in a Tuk Tuk. Unlike typical taxis, Tuk Tuks do not have meters to calculate the fare and the drivers love tourists.