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

http://www.ntc.umd.edu/

http://www.tep.umd.edu/

mailto:[email protected]


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




3

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




Sustainability IndicatorsMOSAIC




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




Modeling FrameworkMOSAIC

INPUT DATA MOSAIC MODEL OUTPUT DATA




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




MOBILITYMOSAIC




SAFETYMOSAIC




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




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




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




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




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




2010 Base Case Traffic ConditionMOSAIC




Highway and Multimodal Improvement Alternatives

Improvement AlternativesMOSAIC




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

1




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)




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




MOSAIC Widget in eGIS




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



mailto:[email protected]

National Transportation Center @Maryland || || 1 Lei Zhang, Ph.D. Associate Professor Director,

Documents

time slide

mode proposed changes

existing transit mode

modeling framework slide

multimodal improvement

mode choice model data

lane bus rapid transit

corridor section