The NZ Guide to Temporary Traffic Management (NZGTTM) has replaced the old Code of Practice for Temporary Traffic Management (CoPTTM), bringing significant changes to how temporary traffic management is conducted across New Zealand. Understanding these changes is essential for anyone involved in roadworks, construction, or events that impact traffic.
What Was CoPTTM?
The Code of Practice for Temporary Traffic Management (CoPTTM) was the previous standard that governed temporary traffic management in New Zealand. While it served the industry well for many years, it was based on older traffic management principles and did not fully reflect modern traffic conditions, vehicle technologies, and safety research.
What is NZGTTM?
The NZ Guide to Temporary Traffic Management (NZGTTM) is the new national standard that replaces CoPTTM. It represents a fundamental shift in how temporary traffic management is planned, designed, and implemented across New Zealand. The NZGTTM aligns more closely with international best practices while addressing New Zealand's unique road environment.
Key Differences Between NZGTTM and CoPTTM
Risk Based Approach
The most significant change is the shift to a risk based approach. While CoPTTM used a relatively prescriptive method based primarily on road category and traffic speed, NZGTTM requires a more comprehensive risk assessment that considers:
- Traffic volume and composition
- Road user types (including vulnerable users)
- Road geometry and sight distances
- Duration of works
- Time of day and day of week
- Environmental conditions
- Work site characteristics
This risk based approach allows for more tailored traffic management solutions that better address the specific hazards of each work site.
Worker Safety Zones
NZGTTM places greater emphasis on worker safety through the introduction of more clearly defined work zone areas:
Advance Warning Area: Drivers are alerted to upcoming changes. Transition Area: Traffic is redirected around the work site. Buffer Space: A protected area is kept between traffic and the work space. Work Space: This is where the actual work takes place. Termination Area: Traffic returns to normal flow.
The requirements for buffer spaces are more stringent under NZGTTM, particularly for higher risk sites.
New Signage and Devices
NZGTTM introduces new signage requirements and traffic control devices that were not included in CoPTTM. These include:
- Updated sign designs that are more visible and recognisable
- New temporary speed limit signage
- Enhanced requirements for portable traffic signals
- New provisions for smart traffic technology
- Updated retroreflectivity requirements
Changes to STMS Qualifications
The STMS qualification framework has been updated to align with NZGTTM. Key changes include:
- Updated training content reflecting NZGTTM requirements
- New assessment criteria for STMS qualifications
- Revised revalidation requirements
- Additional specialist endorsements for specific work types
All STMS holders were required to transition to the new qualifications by the deadline set by Waka Kotahi.
Digital TMP Requirements
NZGTTM encourages and in some cases requires digital TMP submission. This includes:
- Digital plan formats for council submissions
- GPS accurate plan drawings
- Integration with council digital approval systems
- Electronic TMP distribution to site teams
Vulnerable Road Users
NZGTTM significantly expands the requirements for managing vulnerable road users including pedestrians, cyclists, and motorcyclists. This reflects the growing emphasis on active transport in New Zealand and the recognition that these road users face disproportionate risks in work zones.
What This Means for Your Projects
If you are planning any work that requires temporary traffic management, you need to ensure:
1. Your TMP designer is qualified under NZGTTM 2. Your STMS holds current NZGTTM aligned qualifications 3. Your traffic management equipment meets NZGTTM standards 4. Your TMP addresses the risk based requirements 5. You allow adequate time for TMP design and approval
How TM Matters Supports the NZGTTM Transition
At TM Matters, all our TMP designers and STMS supervisors are fully qualified under NZGTTM. We have invested in updated training, new equipment, and revised procedures to ensure full compliance with the new standard. Our TMPs are designed specifically for NZGTTM compliance, and we work closely with councils to ensure smooth approvals under the new framework.
Contact us today to discuss how we can support your project with NZGTTM compliant traffic management.
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