The temporary zone, stretching from the airport's closest northbound roundabout to its long-term car park entry-exit, is expected to last about nine months while works are completed.

Launceston Airport operations and compliance manager Peter Holmes said development to relocate the airport's entry and exit were penned for January 9.

``At the finalisation of the works, both the current entry and the current exits will no longer be in existence,'' Mr Holmes said.

``We anticipate a much safer traffic flow and a much improved traffic flow as a result of the completion of the works.''

He said the airport's new entry would complete the fourth leg of the roundabout joining Western Junction's Hudson Fysh Drive and Evandale Main Road.

He said he didn't anticipate any significant delays to traffic at any part during the process.

``It will simply be a matter of having large construction equipment on or near the main Evandale road that we would have any restriction on traffic,'' he said.

Mr Holmes said a tender had not yet been signed and  an announcement was expected about January 9.

A Department of Infrastructure, Energy and Resources spokeswoman said it received community feedback about near misses in the area and, although its crash data did not indicate a problem, it would conduct a review of the limit.