Overview of Operations
Regional Operations Forum
Accelerating solutions for highway safety, renewal, reliability, and capacity
Overview of Operations Regional Operations Forum Session Outcomes - - PowerPoint PPT Presentation
Accelerating solutions for highway safety, renewal, reliability, and capacity Overview of Operations Regional Operations Forum Session Outcomes Define Management & Operations and ITS Understand the relationship between transportation
Regional Operations Forum
Accelerating solutions for highway safety, renewal, reliability, and capacity
systems management & operations (TSM&O) and the
user
TSM&O
support TSM&O
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user
TSM&O
support TSM&O
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Source: Transportation System Management and Operations Mega Issue White Paper, Institute of Transportation Engineers, Washington, DC http://www.ite.org/mega/M&Ofinal.pdf
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– Planning – Design – Construction – Maintenance – Traffic and Safety – Management and Operations – Research – Administration (HR, information technology, finance, etc.)
for attention and resources
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user
TSM&O
support TSM&O
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Management & Operations
Organizational Capacity Performance Management
Network Infrastructure
Data Collection & Management
Plans Processes and Policies
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CAO Admin. Planning Design Districts Maintenance TSM&O TMC(s)
Indicates lead role for TSM&O. Other units retain some M&O responsibilities
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CAO Chief Engineer
Planning Design Chief Engineer
Freeway Ops TMC(s) Traffic Eng. & Safety Maintenance Districts Administration
Indicates lead role for TSM&O. Other units retain some TSM&O responsibilities
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CAO Chief Engineer
Design Planning Design Chief Engineer
ITS Traffic Eng. & Safety Maintenance Districts TMC(s) Administration
Indicates lead role for TSM&O. Other units retain some TSM&O responsibilities
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– Planning – Design – Construction – Maintenance – Traffic and Safety – Management and Operations – Research – Administration (HR, information technology, finance, etc.)
– Competition for funding, staffing, and other resources – Cooperation includes integration of TSM&O into processes of other activities
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Operations Planning Design Construction Maintenance
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Operations Planning Design Construction Maintenance Cross Cutting Activities
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Maintenance Design & Construction Planning Management and Operations
Planning for non-recurrent congestion Mitigating construction impacts Improving safety, reliability and throughput
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Regional and Multimodal Corridor or Network Roadway Segment or Intersection
Planning Design and Construction Maintenance Management and Operations
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Construction and Maintenance Misc. TSM&O
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Typical Characteristics Traditional Staff TSM&O Primary Degrees Civil Eng., Planning, Geography
Sci., Operations. Research Professional Societies ASCE, APWA, APA IEEE, ITS America, ITE Periodicals Better Roads, Public Roads, Civil Engineering Magazine Traffic Technology, ITS World, IEEE Spectrum Typical initial job assignments Training program (rotation). Construction inspection TMC operation, traffic signal timing, traffic data collection
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user
TSM&O
support TSM&O
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designation and should be used whenever possible
avoided because of the potential confusion with Operations and Maintenance which goes by the same abbreviation
popular with FHWA and is still in use.
within a limited geographical area. It is often used by the planning community
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Transportation Officials (AASHTO)
(AMPO)
(IBTTA)
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AASHTO Board of Directors and Executive Committee Standing Committees Aviation Environment Finance and Admin. Highway Traffic Safety Highways Performance Management Planning Public Transportation Rail Transportation Research Water Transportation Subcommittees in Standing Committee on Highways Bridges and Structures Construction Design Highway Transport Maintenance Materials Right-of-Way & Utilities Systems Operation and Management (SSOM) Traffic Engineering
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Secretary Deputy Sec.
Federal Highway Administration National Highway Traffic Safety Administration Federal Transit Administration Research and Innovative Technology Administration Federal Motor Carrier Safety Administration …
FHWA ITS/Joint Program Office NHTSA FTA RITA FMCSA ITS/JPO
Office of Operations
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National Cooperative Highway Research Program Transit Cooperative Research Program National Cooperative Freight Research Program Strategic Highway Research Program 2 … NCHRP Capacity TCRP NCFRP SHRP2 Transportation Research Board TRB Reliability Renewal Safety
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comparison of the benefits and costs of a project, decision or policy
that contains concepts, guidelines, and procedures for calculating capacity and quality of service of roadway facilities.
quality of flow on a given roadway facility. LOS is usually expressed using a series of letter grades (A through F) that describe the type of flow, speeds and delays encountered by traffic on the facility
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Probability Density Function (PDF): Plots of several hypothetical normal distributions with various means (µ) and variance (σ2). For transportation applications, horizontal axis could represent various travel times while vertical axis could represent the probability of their occurrence. Cumulative Distribution Function (CDF): The CDF is a plot of the same data as the PDF. Curves with the same colors represent the corresponding PDF
that the travel time will be less than or equal to the value on the X axis.
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Reliability
– Guidelines for programs to monitor travel-time reliability – Guidebook for designing, building, operating, and maintaining reliability monitoring systems.
presenting travel time data including the CDF
Reference: http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=2178
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the user
TSM&O
support TSM&O
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– Recurrent congestion; commuters, major traffic generators, inadequate capacity – Non-recurrent congestion; incidents, construction, weather, special events
– Recurrent congestion; time-of-day controls (signals, ramp metering, reversible lanes) – Non-recurrent congestion; adaptive controls, incident response
– Impacts of recurrent congestion; travel time and delay – Impacts of non-recurrent congestion; travel time reliability and incident duration
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Majority of delays caused by non-recurrent events
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80% 100% 120% 140% 160% 180% 200% 220% 1980 1985 1990 1995 2000 2005 1980 = 100% VMT Index Lane Mile Index 40
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passing opportunities
goal for many urban areas
at or near capacity
conditions
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Criteria Level of Service A B C D E
11 18 26 35 45
70.0 70.0 68.2 61.5 53.3
0.32 0.53 0.74 0.90 1.00
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Peak Period Free-Flow Speed Speed V/C Ratio LOS AM 70.5 58.2 0.84 D-E (speed)
C-D (V/C ratio) PM 71.8 62.3 0.89 C-D (speed & V/C ratio)
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Congestion Factors into the Highway Capacity Manual Methods
arterial flows in the presence of various causes of unreliability
recurrent congestion is based on national/regional data
measures including LOS
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Source: NCHRP 20-7, “Guide to Benchmarking Operations Performance Measures, January 2008
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Reference: http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=2178
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user
mobility
TSM&O
support TSM&O
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– Technical systems and tools (ITS) – Procedures (incident management) – Policies (memoranda of understanding, planning and budgeting)
understanding of objectives – Recognizing that a suite of strategies may be required to accomplish a given objective – Identifying appropriate performance measures to ensure objectives are achieved
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Characteristic Recurring Non-Recurring Causes VMT Crashes Special Events Weather Mobility Performance Measures Travel Time Delay Incident duration Travel Time Reliability Strategies HOV lanes Ramp metering Signal timing Incident clearance Incident Management Traveler Information Responsive signal operation
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– Better timing of time-of-day systems – Traffic-responsive systems – Adaptive systems
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Characteristics Applicability Always Occasional Never Supply vs. Demand Supply Demand Conditions Addressed Recurrent NR. Roadway Type(s) Arterials & Networks Freeways
– Time-of-day systems – Traffic-responsive systems – Adaptive systems – Priority lanes
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Characteristics Applicability Always Occasional Never Supply vs. Demand Demand Supply Conditions Addressed Recurrent NR. Roadway Type(s) Freeways Arterials & Networks
– Incident clearance – Traveler information – Traffic management
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Characteristics Applicability Always Occasional Never Supply vs. Demand Supply Demand Conditions Addressed NR Recurrent Roadway Type(s) Freeways Arterials & Networks Objective All
– Pre-trip planning – En-route information – In-vehicle information
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Characteristics Applicability Always Occasional Never Supply vs. Demand Supply Demand Conditions Addressed NR Recurring Roadway Type(s) Freeways Arterials & Networks
– Photo enforcement – Traffic calming – Variable speed systems – Variable lane usage
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Characteristics Applicability Always Occasional Never Supply vs. Demand Both Conditions Addressed Both Roadway Type(s) All
– Tolling – Transit fare payment – Parking payment – Mileage based insurance
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Characteristics Applicability Always Occasional Never Supply vs. Demand Demand Supply Conditions Addressed Recurrent NR Roadway Type(s) All
– Weigh stations – Safety inspection – Border crossings
Commercial vehicle operations are used to facilitate freight movement. While weigh stations and safety inspections primarily occur on freeway facilities, they may also be found in specialized locations such as border crossing and surface streets with heavy commercial traffic
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– Bus preemption – Arrival information – Improved scheduling
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Characteristics Applicability Always Occasional Never Supply vs. Demand Demand Supply Conditions Addressed Both Roadway Type(s) Arterials & Networks Freeways
– Integrated Corridor Management – Active Traffic Management – Integrated Payment Systems
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Characteristics Applicability Always Occasional Never Supply vs. Demand Both Conditions Addressed Both Roadway Type(s) All Objective All
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Integrated Systems
Smart Systems
Conventional Systems
The Present The Future
Traffic Signals Ramp Metering Incident Clearance Adaptive Signals Adaptive Metering Incident Management Social Media ICM ATM EPS Crowd Sourcing Cloud Computing Connected Vehicle
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user
TSM&O
support TSM&O
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The introduction of – Improved technology (smaller, faster, cheaper) – Expansion of electronic payment systems – 511 – Travel times on VMS – Photo enforcement As well as – Increased travel demand (more congestion), and – Less money
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results
studies, planning activities, etc.
– Associations (ITE, ITS/A, AASHTO) – Publications – I-95 Coalition – NTOC
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Source: The ACA Group, http://www.theacagroup.com/customerservice.htm
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be reached in different ways
– Commuters – Local travelers – Vacation travelers – Truckers and shippers – Elected officials – Property owners – Providers (insurance industry, OEMs, aftermarket suppliers)
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Customer Type Primary Concern(s) Secondary Concern(s) Commuters Reliability Travel time, tolls Local Travelers Reliability or travel time Reliability or travel time Vacation Travelers Travel time Reliability Truckers & Shippers Reliability Travel time, tolls Elected Officials Customer service Congestion Property Owners Noise, access Mobility Providers Safety Vehicle performance
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Customer Type Survey Results Service Patrols Traveler Info. Websites Pubs. Call Centers Commuter X X X X Local Traveler X X X X Vacation Traveler X X X Truckers & Shippers X X X X Elected Officials X X X X X X Property Owners X X X Providers X X
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– Operations including first responders – Engineering – Construction – Maintenance – Planning
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Project Reference: http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=2177
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Effective SO&M performance based on continuing capability improvement Supportive processes depend on
relationships Effective & sustainable programs require specific business/technical processes
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Measures into the Transportation Planning and Programming Process
reliability can be included in the planning process
results of project evaluations can be communicated to the general public
Project Reference: http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=2194
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user
TSM&O
support TSM&O
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Strategy Impacts Traffic Signal Retiming Delay reduced 8% to 25% Ramp Metering Speeds increased 24% Freeway Incident Management Incident duration reduced 39% to 51% Traveler Information On time reliability improved 5% to 16%
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Operations The Winner Construction
B/C ratios 10 to 60 B/C ratios typically 1 to 5 Impacts widespread (corridor/region) Impacts localized (section/intersection) Implementation 1 to 2 yrs Implementation 5 to 12 yrs Rarely affects travel behavior Affects travel patterns & land use Low visibility to traveler Highly visible where implemented Often a political non-starter Politically attractive
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– Major capacity deficiencies for either intersections or roadways – Safety problems due to inadequate geometrics, site distance, etc.
– Non-recurrent congestion due to incidents, weather, etc. – Recurrent congestion due to poor signal timing, inefficient lane utilization, short term peaks in demand
– TSM&O can be used to supplement new capacity – TSM&O can offer interim solutions while new capacity is developed – TSM&O can reduce the impacts of construction and maintenance
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Define the Problem Recurrent Localized Signalization Grade Separation Add a lane Areawide Signal timing Transit Traveler Information Non- Recurrent …
Indicates TSM&O strategy. All others construction or transit related
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Define the Problem Recurrent Non-Recurrent Localized Geometric safety improvements Access to special events venues Traveler information Areawide Adaptive controls Enhanced incident response Traveler information
Indicates TSM&O strategy. All others construction related
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Design Features
compendium of design treatments likely to affect non- recurrent congestion
use to evaluate the effects of such treatments on delay, safety, travel time reliability, and lifecycle benefits and costs.
Project reference: http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=2181
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user
TSM&O
support TSM&O
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https://www.fhwa.dot.gov/goshrp2/Solutions/Reliability/List
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Number Project Name Product(s) L02 Establishing Monitoring Programs for Travel Time Reliability Guidebook for existing TMS L04 Incorporating Reliability Performance Measures in Planning and Operations Modeling Includes a software to adopt simulations to evaluation of travel time reliability L05 Incorporating Reliability Performance Measures into the Transportation Planning and Programming Process The techniques for the use of reliability data to support decision-making and communicate the results L07 Evaluation of Costs and Effectiveness of Highway Design Features to Improve Travel Time Reliability Tool to evaluate the impact of geometric design treatments on reliability and evaluate their costs and effectiveness. L08 Incorporation of Non-Recurrent Congestion Factors into the Highway Capacity Manual Methods Incorporates reliability into the Highway Capacity Manual
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Number Facility Type Applicability Potential User(s) Freeway Arterial Corridor Sub-Area Planning Engineering & Design Operations State DOT MPO Municipal L02 X X X X L04 X X X X X X X X X L05 X X X X X X X L07 X X X X L08 X X X X X X X
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