A safety review is being carried out at an accident hot spot at junction 37 of the M6.
Stop signs are being installed on the exit slip roads at the junction 37 on the M6 near Kendal, after two women died in a crash earlier this month.
There will also be a further review of safety along the stretch of road, and the northbound slip road will also be reduced to a single lane with traffic cones.
A spokesperson for agency said: "This work is presently being undertaken to encourage drivers to reduce their speed and improve driver awareness of the junctions."
In July a motorcycle passenger died and the rider was seriously injured in a vehicle collision there.
Westmorland and Lonsdale MP Tim 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.”