Public transport accounts for a substantial portion of different modes of transport in Taiwan, with Taipei residents having the highest utilization rate at 34.1%. Private transport consists of motor scooters, private cars, taxi cabs, and bicycles. Motor-scooters often weave between cars and occasionally through oncoming traffic. Respect for traffic laws, once scant, has improved with deployment of traffic cameras and increasing numbers of police roadblocks checking riders for alcohol consumption and other offenses.