A bylaw passed by Maputo City Council, banning heavy trucks from driving in Maputo between the hours of 06.00 and 20.00, comes into effect on Tuesday, 1 March.The measure, introduced to tackle traffic congestion in the capital, applies to vehicles weighing over 22 tonnes, with the exception of trucks entering or leaving Maputo port which are authorised to follow a fixed route laid down by the Maputo City Council.Trucks will be able to use the national highways into or out of the city at any time since the Council has no authority over these roads.Any truck drivers caught breaking the ban will face an on the spot fine of 10,000 meticais (about 320 US dollars).