4.1.1Scenario#

An asphalt contractor needs to replace a 50 m section of rutted pavement on a multi-lane divided road (Category 2 Road) with two lanes in each direction. The maintenance works are planned for nightshift (when traffic volumes are low) and are expected to take a maximum of six hours. The works will require sporadic truck and plant movements into and out of the site (with delays of no more than 10 minutes at a time), managed by traffic controllers. The entire width of the left-hand lane needs to be replaced; therefore, there is an expectation that works will be within 1.2 m of live traffic. The contractor has advised a five-minute traffic count conducted at the site previously, returned 12 average vehicles and one large vehicle as the maximum expected during the hours of work. There is some street lighting in this area, but this is well spaced.