Temporary safety improvements will be installed at Junction 37 of the M6, said Cumbrian MP Tim Farron.
Mr Farron said he had been told by National Highways today that stop signs will be erected on the northbound and southbound slip roads from the M6 to the A584 at the junction, between Kendal and Sedbergh.
The northbound slip road will also be reduced to a single lane with traffic cones.
Two people died after a collision between a bus and a car at the junction and in July, a motorcycle passenger died and the rider seriously injured in a collision.
The temporary measures are due to be set up this week.
Mr Farron said: “After another heartbreaking accident, I really welcome National Highway’s decision to install stop signs at the junction this week.
“This is something I, alongside local Liberal Democrat councillors Ian Mitchell and Hazel Hodgson and the new MP for Sedbergh Lizzi Collinge, have been pressing for and they can’t come a moment too soon.
“While these changes are initially temporary, I am extremely hopeful that they will become a permanent feature so we can prevent more fatal accidents happening here.”
