National Transportation Center @Maryland || || 1 Lei Zhang, Ph.D. Associate Professor Director,
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Transcript of National Transportation Center @Maryland || || 1 Lei Zhang, Ph.D. Associate Professor Director,
National Transportation Center @Maryland || www.ntc.umd.edu || www.tep.umd.edu 1
Lei Zhang, Ph.D.Associate Professor
Director, National Transportation CenterDepartment of Civil and Environmental Engineering
University of Maryland301-405-2881, [email protected]
Liang Tang, Nicholas Ferrari, Mingyang JiGraduate Research Assistant
University of Maryland
Eric Beckett, Subrat Mahapatra, and Greg SlaterOffice of Planning and Preliminary Engineering
Maryland State Highway Administration
MOSAIC – Model Of Sustainability And Integrated Corridors: A Comprehensive Tool for Multimodal Sustainable Corridor Planning
Presentation at the 2015 TRB Planning Applications ConferenceAtlantic City, NJ, May 17~21, 2015
National Transportation Center @Maryland || www.ntc.umd.edu || www.tep.umd.edu 2
Research Objectives
Define sustainability indicators for SHA’s Sustainability Initiative and Comprehensive Highway Corridors (CHC) program;
Provide a user-friendly tool for analyzing the impact of multimodal highway corridor improvements on mobility, safety, socioeconomics, energy and environment, natural resources, and cost;
Improve current SHA processes related to long-range planning, highway needs inventory, project planning/screening, and environmental stewardship;
Help SHA save money and time.
MOSAIC
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Select a Corridor
Alternative Improvements
Corridor Data from eGIS
MOSAICImpact of Each Candidate Improvement Scenario on:
Sustainability Indicators
MobilityEnergy&Environment
Natural ResourceCost
SocioeconomicsSafety
MOSAIC Tool Overview
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Sustainability IndicatorsMOSAIC
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MOSAIC
MOSAIC Improvement Options
GEOMETRIC IMPROVEMENTS MULTIMODAL IMPROVEMENTS
Add General Purpose Lanes Add High Occupancy Vehicle (HOV) Lane
Remove Lanes (Road Diet) Add High Occupancy Toll (HOT) Lane
Convert At-grade Intersection to Grade Separated Interchange
Add Express Toll Lane (ETL)
Add Bus Only Lane / Bus Rapid Transit
Add Truck Only Lane
Add Light Rail Transit (LRT)
Through the multi-improvement analysis framework, MOSAIC also allows users to apply combinations of geometric improvement and multimodal improvement options to a corridor section at the same time
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Modeling FrameworkMOSAIC
INPUT DATA MOSAIC MODEL OUTPUT DATA
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MODE CHOICE MODELS
Changes to Existing Highway/Transit Services Pivot-point Mode Choice
Model
Data needs Current market shares of each mode; Proposed changes of the Level of Service (LOS) variables for each alternative.
New Transit Service
Extended Incremental Logit Model
Data needs Current market shares of each
mode; Proposed changes of the Level of
Service (LOS) variables between the proposed and existing transit mode.
MOSAIC
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MOBILITYMOSAIC
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SAFETYMOSAIC
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SOCIO-ECONOMIC IMPACT
Transit Implementation Scores
Facilities’ CompatibilityAesthetics
Economic Benefits
Livability
Noise
Land Use Attractive
Historical Road and Sites Protection
Visual Appealing
Transportation Factors
Other Factors
Effective Densities
Travel Time Between Zone Pairs
Costs of Travel/Time
GDPNumber of Employees
Employment Allocation
Categorizing Land-use Pattern & Defining Corresponding
Noise Metric Criteria
Estimating Project Noise
Exposure
Travel Time Scores
Land-use Mix Scores
MOSAIC
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NATURAL RESOURCES
Cultural/Historical Sites,
Steep Slopes,
Highly Erodible Soils,
Wetlands, Waterways, Springs/Seeps,
Floodplains
Forests,
Critical Areas,
Bedrock/Geology Areas,
Natural Species,
Storm Water Facilities, etc.
MOSAIC
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ENERGY AND EMISSIONS
Divide the Corridor into i Sections
Obtain Peak/Off-Peak Energy and Emission Rates by U.S. EPS’ s MOVES (2010)
Section i
Fuel Consumption (million BTU/mile)(2010/2040) COPollution Emission Nox(grams/mile) PM10(2010/2040)Greenhouse Gas (gram/mile)(2010/2040)
Types of Rates
Rural
Urban
Categorized by
Total Fuel Consumption/Pollution Emission/Greenhouse Gas Emission
For Each Section
Restricted Unrestricted
Restricted Unrestricted
Streets Geometry ConfigurationsPeak and Off-Peak Hour % of ADT
MOSAIC
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COST -- Roadway
Divide the Corridor into i Sections
Divide All Relevant Projects into Three Different Categories
Urban
Total Cost for the Improvement Along the Whole Corridor
Rural
Reconstruction -Add a Lane
Widening -Add a Lane
New Interchange
Incorporated Costs Data
Cost Types· Planning· Engineering · Right-of-way· Construction
Highway Development Project Information
(SHA, 2010) Highway Construction Cost Estimating
Manual(SHA, 2009)
General Purpose LanesMOSAIC
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Demo: US 29 CASE STUDY
Section 1 (A to B) IS70 to MD175 Freeway with full access control
Section 2 (B to C) MD175 to Montgomery Line Freeway with full access control
Section 3 (C to D) Montgomery Line to Dale DR Freeway with traffic signals
Section 4 (D to E) Dale DR to DC Line Arterial street with traffic signals
MOSAIC
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2010 Base Case Traffic ConditionMOSAIC
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Highway and Multimodal Improvement Alternatives
Improvement AlternativesMOSAIC
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Evaluation ScoresMOSAIC
Modules Base Add Reduce Grade-
separated HOV HOT Express Truck Bus LRT
Mobility 7.7 10 0 9.75 5.85 5.82 5.92 8.03 8.45 8.46
Safety 0 0 0 8.95 8.67 7.98 8.34 2.1 5.56 10
Socioeconomics 6.54 10.86 0 10 3.75 5.32 4.55 6.64 5.94 5.24 Natural
Resources 10 9.63 10 3.61 2.94 2.94 2.94 0 0 4.93
Energy & Fuel 0 1.94 3.5 0.39 10 9.43 9.92 1.81 4.65 5.14
Costs 10 9.71 9.9 6.82 9.22 9.22 9.22 7.78 7.34 0
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Comparison of Alternatives
a. MOSAIC Final Scores for Each Alternative(Focusing on Mobility and Safety)
b. MOSAIC Final Scores for Each Alternative (Focusing on Green Solutions)
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MOSAIC OutputMOSAIC Output
IndicatorsIndicators
eGISeGIS
UsersUsers
MOSAIC Input Data
MOSAIC Input Data
MOSAIC ModelsMOSAIC Models
MobilityMobility
Natural Resources
Natural Resources
Energy and Environme
nt
Energy and Environme
nt
Socio-Economic
Socio-Economic
SafetySafety
CostCost
Numerical Results
Numerical Results
Graphical Results
Graphical Results
Summery Reports
Summery Reports
1) construct an eGIS-based system (widget) to select MOSAIC model parameters (spatial & non-spatial),
2) execute the MOSAIC models, and 3) create graphic & tabular reports.
Integrating MOSAIC and eGIS
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MOSAIC Widget in eGIS
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THANK YOU!
Comments and suggestions are welcome.
Lei Zhang
Associate Professor
Director, National Transportation Center
Department of Civil and Environmental Engineering
University of Maryland
301-405-2881, [email protected]
MOSAIC