Recruitment
October 3, 2025

Becoming an STMS

What is an STMS and how do you become one?


An STMS is a Site Traffic Management Specialist. They are the person responsible for the safety and management of temporary traffic management (TTM) operatives on a traffic managed site.

To become a STMS, you require a TMO non-practising warrant (or existing STMS warrant under the previous qualification model). A STMS can be warranted for Cat A, B, and C road assessments.

The STMS plays an important part in traffic management and is responsible for TTM on the roads. The STMS-U (Universal Site Traffic Management Specialist) is the base knowledge for the STMS Category A, B, or C warrants. This relates to the different road categories and requires their own warrants.

From a STMS-U, you can progress to the following roles -

  • An onsite STMS on a category A, B, or C road environment or in a mobile operation
  • A Traffic Operations Manager
  • A TTM Mentor or TTM Assessor
  • A TTM Planner, TMP Approver