I would have the train simulator Tyne and Wear Metro set post Metro Flex but with both the Tyne and Wear Metrocars and British Rail Class 555 trains. The route would have both the Green and Yellow lines with a total route mileage of 48.2 miles. The route has a maximum speed of 80kmph/50mph, all speed limits are in KMPH so if it gets made it should have the route template set in KMPH.