Severe traffic congestion.
Ex: The Congestion Charge is an £11.50 daily charge for driving a vehicle within the charging zone between 07:00 and 18:00, Monday to Friday
Ex: They see a huge potential for solving congestion problems and problems with air quality in pretty much all cities across the globe.
Ex: This project aims to reduce traffic congestion
Ex: Los Angeles has highest overall traffic congestion during rush hour
Immersion in English - Makes You Perfect 