Royal Haskoning DHV has been selected to tackle 30 major traffic bottlenecks in the Saudi Arabian capital Riyadh over the next two years. ArRiyadh Development Authority (ADA) decided to award the US$1.87million (€1.5mn) contract to the Dutch project management, engineering and consultancy service provider following a call for tenders. The population of Riyadh has risen dramatically over the past few decades and currently stands at around 5.4 million and, as a result, the city's roads and motorways are reach
Royal Haskoning DHV has been selected to tackle 30 major traffic bottlenecks in the Saudi Arabian capital Riyadh over the next two years. ArRiyadh Development Authority (ADA) decided to award the US$1.87million (€1.5mn) contract to the Dutch project management, engineering and consultancy service provider following a call for tenders. The population of Riyadh has risen dramatically over the past few decades and currently stands at around 5.4 million and, as a result, the city's roads and motorways are reach
Using ground penetrating radar to determine reason for serious pavement settling in Kentucky-Tennessee tunnel
Just a few years after the opening of the Cumberland Gap Tunnel, highway officials noticed moderate to severe settling of the continuously reinforced concrete pavement. The mountain tunnel provides an important link between Kentucky and Tennessee along US25E and the problem looked serious, with many voids discovered beneath the pavement surface.
To investigate the problems, the Kentucky Transpor
Some friends in the US decided to turn a toy Barbie Mustang car into something rather more entertaining. The men fitted a Honda motorcycle engine and new driveline components, including go-kart tyres. This allowed a top speed of 115km/h, which it could reach in just six seconds, making it rather lively and spirited and also difficult to control. The vehicle is definitely not likely to be made road legal any time soon and nor is a model with a similar performance ever likely to be available from the original
