Broadway, Toole, & California Intersection Improvements
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How can we improve the intersection of Broadway, Toole, and California? The City of Missoula and the Montana Department of Transportation want to hear your thoughts! Your comments, along with several other factors such as costs, safety, traffic operations, right-of-way impacts, and constructability will be used to shape the outcome for the final intersection configuration.
Learn more about the project goals, project phases, and design options below. In the coming weeks we will have an update on the intersection design selection - stay tuned!
PROJECT PHASES: Concepts to Completion
This intersection involves many complex factors that must be carefully considered before a new design can be implemented. The City of Missoula and the Montana Department of Transportation are following a Federal Highway Administration (FHWA)-approved process to guide the selection and implementation of a new intersection design. The phases of this process are outlined below. We are currently at the Intersection Control Evaluation Stage II step in the process and will be selecting a preferred concept in the coming weeks. Stay tuned and check back here for updates as we progress this project towards completion!
INTERSECTION CONTROL EVALUATION: STAGE II
The following intersection options are being evaluated through the Stage II process of the Intersection Control Evaluation study. Several factors, including safety, traffic operations, environmental and community considerations, right-of-way impacts, and constructability and phasing are being considered as we move towards a preferred concept. Each of these factors will be analyzed by our contraced design team, WGM, and published in a final report with a recommended intersection design. The City of Missoula and MDT will review the report and determine a final configuration to be designed and constructed.
OPTION A: ROUNDABOUT
OPTION A: ROUNDABOUT
PROS
CONS
Realigns Toole Avenue and removes the westbound slip lane which then eliminates vehicle weaving while approaching Russel St Intersection.
Roundabouts offer safety and operational benefits:
Reduce crash severity
Reduce the number of conflict points
Lower vehicle speeds
Simplify driver decision-making
Promote continuous traffic flow
Shorten pedestrian crossings and provide pedestrian refuge islands
Provides complete non-motorized facilities on all four legs of the intersection
Removes movement prohibitions at the intersection
Balances peak and non-peak hour operations at the time of opening but does not remains balanced over time.
Consistent with planning documents and long-term vision for the neighborhood
Westbound and northbound approaches for vehicles become constrained over time, resulting in much longer queing time than other alternatives
Reduced capacity on westbound and northbound could limit redevelopment potential in the neighborhood
Requires the greatest amount of right-of-way acquisition
Potentially greater impacts to adjacent business access
Higher construction costs compared to other options
OPTION B: IMPROVED SIGNAL (TRAFFIC LIGHT)
OPTION B: IMPROVED SIGNAL (TRAFFIC LIGHT)
PROS
CONS
Realigns Toole Avenue and removes the westbound slip lane which then eliminates vehicle weaving while approaching Russel St Intersection.
Provides complete non-motorized facilities on all four legs of the intersection:
Bicycle movements are fully separated from vehicles
Includes pedestrian signal timing to prioritize pedestrian crossings ahead of vehicle movement
Removes movement restrictions at the intersection
Minimizes right-of-way acquisition and property impacts
Reduced impacts on adjacent business access
Increased delays and queueing is expected upon opening and in the future years
Is not consistent with the City’s adopted planning documents (Envision West Broadway)
Reduced capacity on westbound and northbound legs may inhibit future redevelopment potential
OPTION C: IMPROVED SIGNAL (TRAFFIC LIGHT) WITH ADDED LANES
OPTION C: IMPROVED SIGNAL (TRAFFIC LIGHT) WITH ADDED LANES
PROS
CONS
Realigns Toole Avenue and removes the slip lane
Eliminates downstream weaving
Provides complete non-motorized facilities on all four legs of the intersection:
Bicycle movements are fully separated from vehicles
Includes leading pedestrian intervals
Removes movement prohibitions at the intersection
Minimizes right-of-way acquisition and property impacts
Provides the least delay and shortest queues of all alternatives
Vehicle-centric design is inconsistent with community planning goals and the Envision West Broadway Master Plan
How can we improve the intersection of Broadway, Toole, and California? The City of Missoula and the Montana Department of Transportation want to hear your thoughts! Your comments, along with several other factors such as costs, safety, traffic operations, right-of-way impacts, and constructability will be used to shape the outcome for the final intersection configuration.
Learn more about the project goals, project phases, and design options below. In the coming weeks we will have an update on the intersection design selection - stay tuned!
PROJECT PHASES: Concepts to Completion
This intersection involves many complex factors that must be carefully considered before a new design can be implemented. The City of Missoula and the Montana Department of Transportation are following a Federal Highway Administration (FHWA)-approved process to guide the selection and implementation of a new intersection design. The phases of this process are outlined below. We are currently at the Intersection Control Evaluation Stage II step in the process and will be selecting a preferred concept in the coming weeks. Stay tuned and check back here for updates as we progress this project towards completion!
INTERSECTION CONTROL EVALUATION: STAGE II
The following intersection options are being evaluated through the Stage II process of the Intersection Control Evaluation study. Several factors, including safety, traffic operations, environmental and community considerations, right-of-way impacts, and constructability and phasing are being considered as we move towards a preferred concept. Each of these factors will be analyzed by our contraced design team, WGM, and published in a final report with a recommended intersection design. The City of Missoula and MDT will review the report and determine a final configuration to be designed and constructed.
OPTION A: ROUNDABOUT
OPTION A: ROUNDABOUT
PROS
CONS
Realigns Toole Avenue and removes the westbound slip lane which then eliminates vehicle weaving while approaching Russel St Intersection.
Roundabouts offer safety and operational benefits:
Reduce crash severity
Reduce the number of conflict points
Lower vehicle speeds
Simplify driver decision-making
Promote continuous traffic flow
Shorten pedestrian crossings and provide pedestrian refuge islands
Provides complete non-motorized facilities on all four legs of the intersection
Removes movement prohibitions at the intersection
Balances peak and non-peak hour operations at the time of opening but does not remains balanced over time.
Consistent with planning documents and long-term vision for the neighborhood
Westbound and northbound approaches for vehicles become constrained over time, resulting in much longer queing time than other alternatives
Reduced capacity on westbound and northbound could limit redevelopment potential in the neighborhood
Requires the greatest amount of right-of-way acquisition
Potentially greater impacts to adjacent business access
Higher construction costs compared to other options
OPTION B: IMPROVED SIGNAL (TRAFFIC LIGHT)
OPTION B: IMPROVED SIGNAL (TRAFFIC LIGHT)
PROS
CONS
Realigns Toole Avenue and removes the westbound slip lane which then eliminates vehicle weaving while approaching Russel St Intersection.
Provides complete non-motorized facilities on all four legs of the intersection:
Bicycle movements are fully separated from vehicles
Includes pedestrian signal timing to prioritize pedestrian crossings ahead of vehicle movement
Removes movement restrictions at the intersection
Minimizes right-of-way acquisition and property impacts
Reduced impacts on adjacent business access
Increased delays and queueing is expected upon opening and in the future years
Is not consistent with the City’s adopted planning documents (Envision West Broadway)
Reduced capacity on westbound and northbound legs may inhibit future redevelopment potential
OPTION C: IMPROVED SIGNAL (TRAFFIC LIGHT) WITH ADDED LANES
OPTION C: IMPROVED SIGNAL (TRAFFIC LIGHT) WITH ADDED LANES
PROS
CONS
Realigns Toole Avenue and removes the slip lane
Eliminates downstream weaving
Provides complete non-motorized facilities on all four legs of the intersection:
Bicycle movements are fully separated from vehicles
Includes leading pedestrian intervals
Removes movement prohibitions at the intersection
Minimizes right-of-way acquisition and property impacts
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