There are very few single deck trolley bus systems that share the route with double-decker buses. Single-decked trolley bus routes tend to be designed for special routes not shared with high-sided vehicles. The NGT shares many parts of its route with double-decker buses. The diagram above shows the problem. It creates a very high catenary system. Double-decker buses raise the roof on the engineering. The heights above are researched but are estimates only. The power cables in the catenary system will carry up to 700 volts. So there won’t be any open-topped buses in the unlikely event of Leeds United winning a trophy anywhere near the NGT system.

It is very hard to get detailed information on the NGT Leeds scheme. There is none given on the NGT website except unrealistic pictures which are just a marketing exercise. The information I have given is based on other schemes, all of which use slightly different constructions of their catenary system.