More than nine out of ten Midlothian streets which currently have 30mph speed limits would be reduced to 20mph under plans set to go before councillors next week.
A review of roads across the county has identified 850 where the new restriction could be brought in with just 70 streets retaining their current 30mph limit.
It could mean some rural communities could see substantial traffic calming measures brought in to ensure vehicles can no longer speed through them.
