Traffic lights will be installed on Breakwater Rd and rail barrier arms at the port's western entrance after two truck and train collisions in two years.
Several near-misses have also been reported recently, as road, rail, foot and cycle traffic in the area continues to grow.
Napier Port has been working with the NZ Transport Agency and KiwiRail on a plan to improve safety at what had now become a congested area.
NZTA Hawke's Bay-Gisborne System Management spokesman Oliver Postings said a solution was complex, but he said the three organisations had worked in closely to deliver what he said was the safety answer.
"Not only are we improving safety at the gate but the traffic lights will help traffic flow evenly into the port and slow the speeds of vehicles coming around the Ahuriri bypass and into the city."