Evaluating Alternative Operations Strategies to Improve Travel Time ...

SHRP 2 L11: Final Appendices
using dynamic lane markings and overhead variable lane use control signs. Variable lanes have
been applied in Montgomery County, Maryland, to increase the number of left-turn lanes during
peak periods (6, 9).
The use of variable lanes to add turn lanes requires adequate turning radii, adequate
departure/receiving lanes, variable-mode signal phasing, and advance warning signs.
5.8 Multimodal Travel
Integrated Multimodal Corridors. Integrated Multimodal Corridors allows various partner
agencies to manage the transportation corridor as a system rather than the traditional approach of
managing individual assets. An example of this is the use of Transit Signal Priority, which
provides an interface between transit vehicles (Transit Agency) and a traffic signal system (Local
or State Agency). This coordination helps reduce congestion and improve the productivity of the
nation's transportation corridors.
The USDOT launched a five-year, multimodal Integrated Corridor Management (ICM) initiative
in 2005 to help mitigate bottlenecks, manage congestion and allow travelers to make more
informed travel choices. In 2006, the USDOT selected eight Pioneer Sites to partner with and
define their concepts of operations and requirements for the ICM initiative. The Pioneer Sites
include Oakland and San Diego, California; Dallas, Houston, and San Antonio, Texas;
Montgomery County, Maryland; Seattle, Washington; and Minneapolis, Minnesota (21, 22).
5.9 Travel Reduction
Rideshare Programs. Rideshare programs involve online carpool matching and assistance to
employers to match their employees and vanpools. Vanpools that meet program criteria such as
traveling at least 20 miles round-trip are given a partial subsidy as an incentive.
Telecommuting. Telecommuting refers to employees that work from home or from a satellite
location on a regular basis. Of course, this type of strategy does not work for all types of
employment such as manufacturing, which requires employees to be present at the workplace.
ADDITIONAL DESCRIPTION AND QUANTITATIVE BENEFITS OF TRAVEL-TIME RELIABILITY STRATEGIES Page F-14