A new Scottish Government study will be launched this month to look at extending the Borders Railway to Carlisle.
The study, expected to take around seven months, will also look at the possibility of upgrading the A7 and A68 through Midlothian.
The findings will help inform the forthcoming refresh of the Scottish Government’s Strategic Transport Projects Review (STPR).
Transport Minister Humza Yousaf said: “A commitment was given to examine the case for an extension of the Borders railway along with improvements to the A1, A7 and A68.
“This study will take forward that commitment. We want to build on the existing Borders railway by considering whether it should be extended to Carlisle.
Future options could include new rail services, improvements to existing road infrastructure and improved public transport provision.