The construction of a new roundabout at the intersection of Nelson and Eastbourne streets will start on Monday.
The intersection will be closed to through-traffic during the construction which is expected to take about eight weeks, weather permitting.
Hastings District Council transportation manager Jag Pannu said closing the intersection would allow the project to be completed at a much faster rate than would be possible if traffic was managed through the site. It was also safer for members of the public and the construction team.
Access to businesses would be maintained and adjustments made to the timing of traffic lights at nearby intersections to ensure the smooth flow of vehicles.
Council's works and services committee chairman Kevin Watkins said the decision to install a roundabout at the intersection had "overwhelming" public support during public consultation earlier this year on how best to improve safety at the intersection.