Downtown Signal Optimization

What are we doing?

1. Signal modifications: upgrading the traffic signals and equipment directly on Higgins Ave, Front St, and Main St.
   • These signals will align with the new lane configurations on Higgins Avenue and intersection layouts at Front/Main/Orange and Front/Madison (new signal)
2. Upgrading equipment and performing Automated Traffic Signal Performance Measures (ATSPM) on 14 other traffic signals in the Downtown network.
   • The upgrades involve installing new equipment on the signals that will allow real-time data analysis to optimize signal timing and improve the overall system performance in the downtown area.

When are we doing it?

Current stage: DESIGN

• currently at a 60% level of detail.
• expecting to reach 100% design in Summer 2026.

Next Stage: CONSTRUCTION

• Start of construction: TBD, potentially Spring 2027

Why are we doing it?

1. The Signal Optimization project element is important to ensure the downtown transportation network operates efficiently.
2. By upgrading equipment, we can review real-time traffic operations to ensure the optimum performance of the transportation network.
3. Traffic signal upgrades are necessary as a result of the changes to Higgins Avenue and Front/Main Street two-way conversion.

How will this change/enhance Downtown Missoula?

SAFETY: Reducing the risk of crashes and increasing the level of comfort for all users traveling to and within downtown.

• The upgraded equipment will gather real-time traffic data to help continuously improve signal timing and operations. This will enhance safety by making intersections more predictable, easier for all users to navigate, and will reduce crash risk. Specifically, this can:
  • Reduce red-light running and crashes
  • Improve safety for people walking by providing better crossing times
  • Create smoother traffic flow with fewer sudden stops

ACCESS: The ease with which people can reach desired goods, services, activities, and destinations using a variety of transportation modes

• Improves access for people walking and rolling by providing more appropriate crossing times for people of all abilities.
• Better signal coordination reduces delays and makes trips more consistent for drivers, transit, and other users.
• Signal timing can be refined to better accommodate vehicles, transit, cyclists, and pedestrians using the downtown corridors.

MOBILITY: The ease, efficiency, and capability of moving people between destinations.

• Improves traffic flow within downtown by moving people more efficiently.
• Enhances travel time reliability by creating more consistent signal coordination.
• Supports efficient movements for all users.

Click here to return to the full Downtown SAM project.