The works comprise the construction of 10 number tractor unit charging islands and the associated ductwork and cabling to them to an adjacent substation in an existing area of pavement at the Port of Felixstowe. The works include, but may not be limited to; Service chambers and ducting Trief kerbing Bollards LV cabling and terminations including works in substations Installation of equipment (electrical tractor unit chargers) supplied by the Employer Road markings Traffic management