Barriers at the 14th Ave exit onto Turret Rd will be replaced with more substantial ones to stop motorists moving them to bypass traffic on 15th Ave.
Tauranga City Council transportation manager Martin Parkes said the temporary road closure would continue for the full six weeks as planned despite some motorists removing the barriers to get through.
He said the council hoped to add more substantial barriers by the end of yesterday.
The council announced the exit would be closed for six weeks from October 16 as part of a trial after complaints that cars were disrupting the traffic flow when they tried to enter Turret Rd.
Mr Parkes believed the trial was going well despite a few drivers moving the barriers.
"It is providing us important data that will help us design improvements for the whole area between 11th Ave and 17th Ave."
He said the trial confirmed the council needed to look at using traffic lights to control the Burrows St and 15th Ave intersection.
"More people are taking Burrows St, which we anticipated. The queue back along Fraser St and into Devonport Rd has increased by around 300m, but the traffic flow past the closed road has improved.
"If people stop trying to use Burrows St, traffic will flow better along the length of 15th Ave and everyone will get home a bit quicker."
The intersection at 15th Ave and Fraser St continued to be a problem during peak evening traffic, Mr Parkes said.
"[So] many drivers are arriving at the intersection that the traffic lights cannot cope, so vehicles are not getting through the green light."
To help address the issue, Mr Parkes said the council needed to find ways to stagger the inflow of traffic from as far as 11th Ave and 17th Ave.
"We are working on a longer-term project to achieve this, which will include introducing sets of traffic signals at key locations in the area."
Mr Parkes said the council had an interim fix to help ease pressure on the Fraser St and 15th Ave intersection with a project for next year's budget to widen 15th Ave between Grace Rd and Burrows St.
"A lot of journeys through the area have nothing to do with Welcome Bay and Maungatapu traffic.
"If we can create conditions that encourage just a 10 per cent shift to other modes of travel, like public transport or biking, it will help make the whole corridor more efficient for everyone to move through. This is at the forefront of our thinking."
• The 14th Ave exit onto Turret Rd will be closed for six weeks from October 16.
• The closure provided the council important data to help design improvements for the whole area between 11th Ave and 17th Ave.
• The trial confirmed the council needed to look at using traffic lights to control the Burrows St and 15th Ave intersection.
• The council had an interim fix to help ease the pressure on the Fraser St and 15th Ave intersection with a project for next year's budget to widen 15th Ave between Grace Rd and Burrows St.