Research by the traffic management company TomTom has found that over the past year, congestion levels have become more severe in eleven of the UK's seventeen largest cities, including London, Manchester, Sheffield, Liverpool, Brighton, Belfast and Newcastle
It states that on average, the overall amount of time that commuters spent stuck in traffic was nine working days. Congestion levels remained static in Glasgow, Bristol and Birmingham.
In contrast, congestion levels fell in Nottingham, Leeds, Brad