A safety barrier installation programme being carried out on SH5 between Napier and Taupo will create slight delays and motorists are being urged to follow "stop-go" traffic controls which will be operating.
The New Zealand Transport Agency is carrying out barrier work at several sites along the highway and 30km/h speed limits will be in place along with traffic signals.
Travel times could be affected by about five minutes.
The NZTA is also continuing an extensive highway repair programme across most highways which is set to continue for several weeks.
"This will mean workers on the road and possibly short sections of speed restrictions," a spokesperson said.
Repair work is under way at sites on SH2 north between Napier and Wairoa, on the expressway and SH50 south, SH5 and SH2 south from Hastings to Dannevirke.
Temporary speed restrictions are also in place and delays can be expected on the Wairoa River Bridge where sewer pipe repairs are being carried out and the Mangahohi Bridge on SH38 between Wairoa and Waikaremoana.