 Cars however are probably the most notable change in the past five years as many Vietnamese people purchase the vehicles for the first time.The increased number of cars are the main cause gridlock as roads and infrastructure in the older parts of Hanoi were not designed to accommodate them.On 4 July 2017, the Hanoi government voted to ban motorbikes entirely by 2030, in order to reduce pollution, congestion, and encourage the expansion and use of public transport.