Lewis Williams, a sixth form pupil at Dyffryn Taf School in Whitland, won a prestigious award for his A' Level Design Technology project at the Big Bang Cymru.

Held at the National Waterfront Museum in Swansea, Big Bang Cymru aims to excite, educate, stimulate and enthuse young people about the many opportunities in Science, Technology, Engineering and Maths (STEM).

Lewis won the Tata Steel Sustainable Design Award for his innovative school crossing sign which he designed to promote the Carmarthenshire Council, 'Stop Means Stop' campaign in a bid to get motorists to stop when patrols attempt to walk children across the road.

Lewis's high tech sign features high intensity flashing LED's, flexible solar panels and two digital video cameras to capture evidence of cars that fail to stop. The sign also features a clever operating system that automatically switches the sign on and off when moved from the upright to the upside down position, indicating the sign is not in operation.

After leaving school, Lewis plans to study for a degree in Mechanical Engineering at Harper Adams University College near Shrewsbury.