Commuters using one of the main roads from Donside could face delays for up to nine months.
A 30mph speed limit has been in place on one of the busiest sections of the A944 Alford to Aberdeen since Wednesday (July 25).
An Aberdeen City Council spokeswoman stressed the restriction between Ardene House veterinary hospital and the Kingswells roundabout will only be in place at off-peak times.
Westhill and district councillor Ron McKail said constituents had raised concern over possible disruption over the coming months and he had contacted the local authority over the potential impact of the works, which are connected to the development of the Prime Four business park at Kingswells.
“This is probably one of the largest pieces of roadwork undertaken in the North-east for many years,” said Mr McKail.
“For motorists there will be hold ups and delays, worse at certain periods as the works are progressed.”
The Conservative councillor urged road users to stick to the measures.
He said: “All of us using this road need to drive with care. Keep to the speed limits which for part of this road will be reduced to 30mph or less.
“Journeys by car or bus into Aberdeen and returning to Westhill will take longer so more time needs to be allowed.”
The city council spokeswoman said it was too early to anticipate what the longer-term impact of the roadworks would be, but it was hoped to issue detailed information later this week.
She said: “A full programme of works is currently being determined in association with the developers and will be made public in due course.”
Concerns were raised last week when an electronic sign was erected to warn drivers that roadworks would be starting on July 25 and continuing over the next nine months.
City councillors granted planning permission in March for the new office complexes that will house the North Sea headquarters of two of the world’s leading energy corporations.
The developer behind the scheme, Drum Property Group, has estimated the park will inject £300million a year into the local economy.