2.5 Active Traffic Management/Dynamic Lane Management Design and Development

Description

Develop and deploy Active Traffic Management solution on the southern section of Interstate 435 to manage traffic congestion in AM/PM peak periods. Active traffic management (ATM) is the ability to dynamically manage recurrent and non-recurrent congestion based on prevailing and predicted traffic conditions. Focusing on trip reliability, it maximizes the effectiveness and efficiency of the facility. It increases throughput and safety through the use of integrated systems with new technology to optimize performance. ATM approaches focus on influencing travel behavior with respect to lane/facility choices and operations. ATM strategies can be deployed singularly to address a specific need such as the utilizing adaptive ramp metering to control traffic flow or can be combined to meet system-wide needs of congestion management, traveler information, and safety resulting in synergistic performance gains. Example strategies include: 

Dynamic Lane Use Control: This strategy involves dynamically closing or opening of individual traffic lanes as warranted and providing advance warning of the closure(s) (typically through dynamic lane control signs), in order to safely merge traffic into adjoining lanes. In an ATDM approach, as the network is continuously monitored, real-time incident and congestion data is used to control the lane use ahead of the lane closure(s) and dynamically manage the location to reduce rear-end and other secondary crashes. 

Dynamic Merge Control: This strategy (also known as dynamic late merge or dynamic early merge) consists of dynamically managing the entry of vehicles into merge areas with a series of advisory messages (e.g., displayed on a dynamic message sign [DMS] or lane control sign) approaching the merge point that prepare motorists for an upcoming merge and encouraging or directing a consistent merging behavior. Applied conditionally during congested (or near congested) conditions, dynamic merge control can help create or maintain safe merging gaps and reduce shockwaves upstream of merge points. In an ATDM approach, conditions on the mainline lanes and ramps approaching merge areas are continuously monitored and the dynamic merge system will be activated dynamically based on real-time and anticipated congestion conditions. 

Dynamic Shoulder Lanes: This strategy enables the use of the shoulder as a travel lane(s), known as Hard Shoulder Running (HSR) or temporary shoulder use, based on congestion levels during peak periods and in response to incidents or other conditions as warranted during non-peak periods. In contrast to a static time-of-day schedule for using a shoulder lane, an ATDM approach continuously monitors conditions and uses real-time and anticipated congestion levels to determine the need for using a shoulder lane as a regular or special purpose travel lane (e.g., transit only). 

Dynamic Speed Limits: This strategy adjusts speed limits based on real-time traffic, roadway, and/or weather conditions. Dynamic speed limits can either be enforceable (regulatory) speed limits or recommended speed advisories, and they can be applied to an entire roadway segment or individual lanes. In an ATDM approach, real-time and anticipated traffic conditions are used to adjust the speed limits dynamically to meet an agency's goals/objectives for safety, mobility, or environmental impacts. 

Status

Planned

Timeframe

Mid Term

Stakeholders

KDOT / MoDOT

Inventory

Driver
Kansas City Scout Field Equipment
Kansas City Scout Traffic Management Center
Other Roadway
Traffic Operations Personnel

Services

TM12-Dynamic Roadway Warning (KC Scout)
TM20-Variable Speed Limits
TM22-Dynamic Lane Management and Shoulder Use (ITS)

Interfaces

SourceFlowDestinationStatus
Kansas City Scout Field Equipmentdriver informationDriverExisting
Kansas City Scout Field Equipmentenvironmental sensor dataKansas City Scout Traffic Management CenterPlanned
Kansas City Scout Field Equipmentlane management informationKansas City Scout Traffic Management CenterPlanned
Kansas City Scout Field Equipmentroadway dynamic signage statusKansas City Scout Traffic Management CenterExisting
Kansas City Scout Field Equipmentroadway equipment coordinationOther RoadwayPlanned
Kansas City Scout Field Equipmentroadway warning system statusKansas City Scout Traffic Management CenterPlanned
Kansas City Scout Field Equipmentshoulder management informationKansas City Scout Traffic Management CenterPlanned
Kansas City Scout Field Equipmenttraffic detector dataKansas City Scout Traffic Management CenterExisting
Kansas City Scout Field Equipmenttraffic imagesKansas City Scout Traffic Management CenterExisting
Kansas City Scout Field Equipmentvariable speed limit statusKansas City Scout Traffic Management CenterPlanned
Kansas City Scout Traffic Management Centerenvironmental sensors controlKansas City Scout Field EquipmentPlanned
Kansas City Scout Traffic Management Centerlane management controlKansas City Scout Field EquipmentPlanned
Kansas City Scout Traffic Management Centerroadway dynamic signage dataKansas City Scout Field EquipmentExisting
Kansas City Scout Traffic Management Centerroadway warning system controlKansas City Scout Field EquipmentPlanned
Kansas City Scout Traffic Management Centershoulder management controlKansas City Scout Field EquipmentPlanned
Kansas City Scout Traffic Management Centertraffic detector controlKansas City Scout Field EquipmentExisting
Kansas City Scout Traffic Management Centertraffic operator dataTraffic Operations PersonnelExisting
Kansas City Scout Traffic Management Centervariable speed limit controlKansas City Scout Field EquipmentPlanned
Kansas City Scout Traffic Management Centervideo surveillance controlKansas City Scout Field EquipmentExisting
Other Roadwayroadway equipment coordinationKansas City Scout Field EquipmentPlanned
Traffic Operations Personneltraffic operator inputKansas City Scout Traffic Management CenterExisting