Transportation Demand Management Strategies for Managed Lanes
Demand management strategies can change travel behavior, incentivizing
individuals to carpool or take alternative modes to reduce congestion and
energy consumption. Managed lane
systems, as a demand management strategy, can also increase travel speeds and
provide reliable trips to commuters traveling in carpools, vanpools, or express
buses. However, some priced managed lane
systems currently appear to be having a negative impact on carpool formation
and retention and a neutral impact on express bus use (as seen on CUTR 95
Express, Atlanta I-85, etc.). Some managed
lanes are also becoming congested during the peak when non-tolled users are
present (e.g., use of lanes by clean-fuel or government vehicles) and maximum
toll rates (toll caps) are in place.
That is, demand for use of the priced lane exceeds the lane capacity at
the price cap. Hence, there is a need to
identify regional-level, corridor-level, and real-time facility-oriented demand
management incentives and communication strategies that will incentivize
carpooling and transit use to manage peak demand, achieve vehicle occupancy
goals, and enhance person-throughput on managed lane corridors.
The goal of the research is to develop practical guidance for regional
transportation planning agencies and managed lanes operators to support the
development and ongoing implementation of managed lanes demand management
strategies designed to incentivize carpooling and transit use, better manage
peak demand, and help meet vehicle occupancy and other performance goals on
managed lane corridors.
The proposed research will:
Assess the potential impacts of non-priced
vehicles, toll caps, pricing implementation policies, and incentives
communications strategies on changes in behavior and system performance based
upon a review of current facility operations.
Identify data requirements for assessing the
behavioral impacts of demand management strategies on managed lane carpool and transit
use at regional, corridor, and facility levels.
For a subset of first and second-generation
managed lanes facilities, with and without pricing implementation, assess
observed changes in carpooling and transit use.
Propose data collection strategies that can be
implemented by managed lane operators to provide reliable and sufficient data to
assess carpool and transit use in behavioral analysis.
Develop guidance for effective incentive
implementation and evaluation that takes into account the policy learning from
the previous steps, and identify how demand management strategies should be
assessed within regional transportation plans, transportation project assessments,
and tolling and revenue studies.
|Sponsoring Committee:||ACP35, Managed Lanes
|RNS Developer:||Nick Wood|
|Source Info:||This research need was originally developed as part of a working group of members and friends of the TRB Managed Lanes Committee (AHB35). The working group consisted of these individuals: Randall Guensler, Robert Bain, Ross Chittenden, Elizach Dembinski, Casey Emoto, Chuck Fuhs, Darren Henderson, Md Sakoat Hossan, Thomas Jacobs, Dave Kristick, Jonathan Peters, Srikanth Panguluri, Myron Swisher, Patrick Vu, and Nick Wood.|
|Index Terms:||Travel demand management, Managed lanes, Carpools, High occupancy vehicle lanes, High occupancy vehicle lanes, Vehicle occupancy, Peak periods, Modal shift, |
Data and Information Technology
Operations and Traffic Management