The East Coast Main Line -LRB- ORGANIZATION@1 -RRB- is a NUMBER@1 miles -LRB- NUMBER@2 km -RRB- longEast Coast Main Line Rail Route Upgrading , LOCATION@1 electrified high-speed railway link between LOCATION@2 , LOCATION@3 , LOCATION@4 , ORGANIZATION@2 , LOCATION@5 , ORGANIZATION@3 and LOCATION@6 .

East Coast Main Line is a electrified main line between LOCATION@2 and LOCATION@6 in LOCATION@1 .
