Poor rail links from East Teeside (M'bro/Stockton) - A19/A1 links congested at peak times. - No dedicated Airport coach service.
My point is if DTV were to close (and this seems more likely:
Durham Tees Valley Airport (From The Northern Echo) then improved links will both serve the people of Teeside in faster and comfortable travel to their nearest Airport in Newcastle, and serve Newcastle in attacting more routtes having a wider catchment area. The alternative Airport being Leeds Bradford which is further afield and unreliable in poor adverse weather.