Motorists travelling to and from Westshore this Friday and Saturday are being advised there will be temporary road closures and speed restrictions while the annual Quarter Iron Maori event is staged.
People planning to catch flights out of Hawke's Bay Airport are being advised to allow extra time to get to the airport.
New Zealand Transport Agency Napier journey manager Oliver Postings said traffic management around the Pandora Pond area off State Highway 2 would be put in place on Friday afternoon with traffic flows moving along the eastern side of Pandora Rd.
There would be a full closure on Friday evening with both lanes set to re-open again at 4pm on Saturday.
Access to West Quay will still be possible but the road will be under speed restrictions - access to Westshore from the Napier city side will be via the expressway and Meeanee Quay.
There will be a detour via the expressway and Prebensen Drive as usual, however motorists are advised that at times during the event there will slow moving cyclists on the highway, Mr Postings said.
"This will be no more evident than at the Prebensen Drive/ Expressway roundabout, where drivers are advised to expect delays at certain times of the morning. Please be patient at the roundabout and the approaches," he said.
Motorists travelling through Hawke's Bay can expect other slight delays as the NZTA heads into its main construction season.
"People will see crews on the network continuing with their pre-sealing repairs."
Work is being carried out at various sites on the expressway SH2B and SH50, SH2 between Hastings and Dannevirke and SH5 between Napier and Taupo.
Pre-seal repairs are also being carried out on SH2 north to Wairoa.
Mr Postings said delays would be minimal with the impact on travel times expected to be around five minutes.