Ho Chi Minh City (HCM) in Vietnam plans to install an Electronic Road Pricing (ERP) system to address traffic congestion in the city.

The ERP system, which is based on a pay-as-you-use model, will charge motorists for using key roads during peak hours.

Such systems have already been installed in London and Singapore and are expected to reduce traffic congestion in Ho Chi Minh by 20%.

The system will keep traffic speeds within 45-65km/h (28-40mph) on expressways and between 20-30km/h (12-19mph) on minor roads.