The thing with the x25, it only serves the edge of that new development. The amount of housing (old and new) in that area with potential passengers is massive - yet their public transport needs are ignored.

Slightly different to that and obviously not to the scale of Team Valley, but Rainton Bridge Industrial Est was totally ignored until NPower struck up the deal with GNE.
There are any amount of small businesses, suppliers to automotive manufacturers etc, who are all major employers, but werent important enough to attract an operator to transport staff to and from work.

Traffic off the A19 at Doxford Park was percieved to be so bad, contractors were called in and thus extended and widened 1 slip road - surely the bigger picture needs looking at, such as why traffic in that direction is so high and to improve the general transport infrastructure, not just a specific slip road.