Train paths:
Middlesbrough/ Eaglescliffe to Hartlepool every 3 mins
Hartlepool to Sunderland every 6 mins
Sunderland to Newcastle every 2 mins
Saltburn to Redcar every 6 mins
Redcar to Eaglescliffe every 3 mins
Eaglescliffe to Darlo every 4 mins
Northallerton to Eaglescliffe every 8-9 mins
A lot of the area it can be seen to run signal to signal with trains. Only thing that really hinders capacity are level crossings.