Full separation of modes is the gold standard for bicycle- and pedestrian-friendly infrastructure. The Tyne Pedestrian and Cyclist Tunnels can therefore be considered platinum standard because there are wide, separate tunnels for those on foot and those cycling.
The 275-meter twin-tube tunnel is buried 12 meters beneath the River Tyne between Jarrow and Howdon, near Newcastle in the northeast of England. It was opened in 1951, sixteen years before the Tyne Tunnel for motor vehicles. At its peak, soon after opening, 20,000 users rode or walked through the tunnels each day.
Closed for refurbishment since 2013, the works are nearing completion and the tunnels are due to re-open in May. I know this because yesterday I was with journalists granted early access to the tunnels and allowed to ride on what is arguably Britain’s best cycleway.