(15 Jun 2015, 7:12 pm)South Tyne Lad wrote Exactly, You'd get more people traveling on the 4 because people who travel by bus tend to avoid changing, they just want one through bus to Newcastle.
And the 4 terminates at a pretty stupid place. Anyways who wants to travel from Houghton to Heworth?
Extending it to Eldon Square would be really easy with the 3 extra Streetlite Max Micro Hybrid suggested in my order prediction.
It's all about the local links that the route serves. I know that the 4 sometimes turns away passengers at peak times, it serves a few schools along the route, and all of the local hop-on, hop-off points along that stretch can get very busy at times. If it weren't for the low bridge, I imagine a few peak runs could do with double decker operation.