Transcript Slide 1

Progress Report
Reliability Focus Area
Subcommittee on Systems
Operation and Management
June 2009
Reliability
• Travel time reliability- consistency of travel
conditions from day to day
• Goal: to reduce non-recurring congestion
through reduction, management, response, and
mitigation of the primary factors (incidents, traffic
control devices, weather, special events, work
zones)
• 19 projects for $20.35 million
Effects of Incidents and
Weather on Reliability
Weekday Travel Times
5:00-6:00 P.M., on State Route 520 Eastbound, Seattle, WA
Travel Time (in Minutes)
30
1 Incident with Rain
2 Incidents with Rain
25
4 Incidents
3 Incidents
1 Incident
Rain
20
15
10
Martin Luther King Day
Presidents Day
Number of Incidents
5
0
Jan 3
Feb 2
Mar 4
2003
Apr 3
SHRP 2 and SSOM
• Share common objectives:
 Measure, improve and report travel time
reliability
Mainstream systems operation and
management
Link planning and operations
Improve state of practice
• SHRP 2 research directly links to SSOM
strategic plan
Program Status
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10 active projects- value $11.55 M
9 remaining projects- value of $8.8M
3 new project starts
3 projects nearing completion
New Project Starts
Projects that have started since
SSOM meeting last year
L02 Establishing Monitoring Programs for
Travel Time Reliability
Prime contractor: North Carolina State University
Budget:
$1,800,000
Duration:
36 months
Contract Start Date: March 18, 2009
The objective of this project is to develop system designs for
programs to monitor travel time reliability and to prepare a
guidebook that practitioners and others can use to design, build,
operate, and maintain such systems.
Anticipated Products
• Guidebook on how to establish monitoring programs for travel
time reliability
L04 Incorporating Reliability Performance Measures
in Planning and Operations Modeling Tools
Prime contractor: Delcan
Budget:
$1,250,000
Duration:
36 months
Contract Start Date: February 6, 2009
The project will (1) develop the capability of producing measures of reliability
performance as output in traffic simulation models and planning models, and
(2) determine how travel demand forecasting models can use reliability
measures to produce revised estimates of travel patterns.
Anticipated Products
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Demonstration of a traffic simulation model that reflects reliability in a
subarea of a network and preparation of application guidelines
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Guidance for incorporating reliability into travel demand forecasting
models and addressing feedback with simulation models
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L10 Feasibility of Using In-vehicle Video Data to
Explore How to Modify Driver Behavior that
Causes Non-Recurring Congestion
Prime contractor: Virginia Tech Transportation Institute
Budget:
$300,000
Duration:
12 months
Contract Start Date: February 9, 2009
This project will involve review of driver videos from past driving studies to
determine the ability to extract useful information on behaviors and responses
to factors that influence travel time reliability.
Anticipated Products
• Report on the feasibility of using in-vehicle video data to help identify driver
behavior modification strategies to improve travel time reliability
In-Vehicle Video Clip
Projects Nearing Completion
Projects that will be completed
this year
L01 Integrating Business Processes to Improve
Reliability
Prime contractor:
Kimley-Horn & Associates
Budget:
$400,000
Duration:
18 months
Expected Completion : August 2009
This project will identify and report on successful practices that integrate
business processes to improve travel time reliability
Anticipated Products
• Development of case studies and summary information
• Business process and data flow diagrams capturing integrated
procedures
• A guide on how to best integrate business processes related to
operations
I-80 Winter State Line Closures
(NV/CA)
• Winter weather, elevation changes necessitate closure of
CA/NV state line
• Limited (i.e., none) parking near state line for trucks not
permitted to cross
• 5 year period – 23 closures, 31 truck prohibitions
• Typical winter day – 2500 trucks I-80 WB
• Why selected: Winter weather ops/management, multiagency event management, freight, rural corridor
Caltrans
Policy Level/Organization Structure
Multi-agency prewinter Coordination
Planning
Operations/Specific Process
Declare closure on
I-80 at CA/NV state line
Notify NDOT D2
Evaluation/Documentation
Establish truck control
check point
NDOT D2 Ops
Follow Level 1 guidelines
Multi-agency prewinter Coordination
Planning
Follow Level 2 guidelines
Determine
level threat
Established
processes
NNROC initiate response
plan (received notification)
Active DMS/HAR
Follow
Level 3
guidelines
Enter closure details
into Road Database
Plan/Deploy infrastructure
placement
Notify D3 and Utah DOT
NDOT D2 Maint
Multi-agency prewinter Coordination
Planning
Freight Ops
Trav. Info System
NHP
Multi-agency prewinter Coordination
Planning
NDOT PIO
Implement incident mgmt plan
yes
Monitor field equipment
Maintenance
crews moblized
Notify
NHP
no
Monitor truck parking impacts
to road operations
Outreach plan
and materials
Excessive
truck
parking?
Upgrade/expand system to
support winter operations
Multi-agency prewinter Coordination
Planning
Update media
511 web site
web site
Stop at border;
find parking
Receive notification of closure
Use alt. route
I-80 Agencies Involved
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NDOT District 2 Operations, Maintenance, PIO
NDOT District 3 Operations/Operations Center
Caltrans
Nevada Highway Patrol
Private Entities (Truck/Freight)
Additional stakeholders – cities, counties, media
I-80 Process Types
• Pre-planning for winter operations/closures
• Process to establish closure and initiate
notifications
• Internal agency processes/procedures for winter
operations, closure operations
• Disseminating traveler information during
hazardous winter conditions
• Planning and programming infrastructure to
support corridor monitoring/info dissemination
L03 Analytic Procedures for Determining the
Impacts of Reliability Mitigation Strategies
Prime contractor:
Cambridge Systematics, Inc.
Budget:
$1,750,000
Duration:
30 months
Expected Completion: August 2009
This project will provide the means to predict what effect various
improvement measures will have on travel time reliability performance
Anticipated Products
• Reliability vocabulary and definitions for application and
communication
• Data and collection requirements, performance metrics,
analysis methods
• Technical relationships between reliability improvement
strategies, causes of non-recurring congestion and
performance measures
L03 Preliminary Findings
• Virtually all performance measures are derived from
travel time distributions – reliability is a probabilistic
phenomena
• At least six months of data are required to develop travel
time distributions – a year is better
• Recommended reliability performance measures include
Buffer Index, Failure/On-time Measures, Planning Time
Index, Skew Statistic, Misery Index, Travel Time Index
• Travel time data traditionally comes from speed
detectors on urban freeways- now the private sector is
proving to be a valuable source of data on all key types
of roads (e.g. signalized urban arterials)
L06 Institutional Architectures to Advance
Operational Strategies
Prime contractor: Parsons Brinckerhoff
Budget:
$1,000,000
Duration:
31.5 months
Expected Completion: August 2009
This project will examine the ways agencies should be organized to
successfully execute operations programs to deliver travel time reliability by:
 conducting workshops to identify key issues
 examine and assess leading agency organizational structures
 examine organizational theory
 hold executive forums to determine the potential for widespread
application
Anticipated Products
• Report providing guidance to transportation agencies on
institutional architectures that will support operation programs
that can improve travel time reliability
L06 Preliminary Findings
• Institutional issues account for the failure to
capitalize on SO&M, not lack of concepts,
technology or even money
• Only two states address SO&M as a stand-alone
multi-year and annual budgeting process at the
same level of formality as other core programs.
• A powerful approach for organizational self
assessment and continuous improvement of
operations is a Capability Maturity Model (CMM),
similar to that used in the IT industry.
L17 A Framework for Travel Time Reliability
(New Project)
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This framework would :
consolidate the Reliability research findings to provide
decision-makers and practitioners a guide to understand
travel time reliability,
incorporate reliability in project planning
promote the merit of systems operations and management
solutions to prevailing problems.
develop and communicate the business case for travel time
reliability
Anticipated Products
• A framework, possibly web-based product, that supports the
planning, design and delivery of Reliability programs
SHRP 2 Implementation
• Report to Congress in January 2009
recommended:
 AASHTO as principal implementation agent, in
partnership with AASHTO, NHTSA and TRB
 Funding at $400M over 6 years
 Formal stakeholder advisory structure with
detailed implementation plans
 Strategies to include- pilot testing of institutional
approaches and technical products, lead
users/demonstration projects, training and
education programs, etc.
SHRP 2 and SSOM
• SHRP 2 will disseminate research results
on a project by project basis- not solely at
end of the program.
• A communication protocol between SHRP
2 and SSOM would have mutual benefits
• SHRP 2 implementation strategiesopportunities for SSOM members to
conduct pilots, demos, be a lead state, etc.
Summary
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Program continues on schedule
Project results becoming available now
Dissemination of results will be a priority
Encourage States to track and consider an
active implementation role
Accelerating solutions for highway safety, renewal, reliability, and capacity
More information can be found at:
www.trb.org/shrp2