Author: sshao45

EFFECTIVE CAPACITY ANALYSIS AND TRAFFIC DATA COLLECTION FOR THE I-85 HOV TO HOT CONVERSION

Project Description: 

To (1) perform data collection and analytical efforts that support the regional conversion of HOV lanes into high-occupancy toll (HOT) lanes, and (2) assess the impacts of HOT conversion on the I-85 corridor.


Final Report

Posters:

  1. Analysis of Variables that Affect HOT Speeds on I-85 Express Lanes in Atlanta Analysis of Variables that Affect HOT Speeds on I-85 Express Lanes in Atlanta (September 2013)
  2. Emissions Impact of HOV to HOT Lane Conversions in I-85, Atlanta (September 2014)
  3. High-Occupancy Toll Lane Decision Making: Income Effects on Atlanta’s I-85 Express Lanes (September 2015)
  4. HOV-to-HOT Conversion Socieoeconomic Impact Assessment: Atlanta I-85 HOV-to-HOT Conversion (September 2014)
  5. “I-85 HOV to HOT Carpool Survey Results“, presented at the 2015 UTC Conference for the Southeastern Region in Birmingham, Alabama, March 26-27, 2015.
  6. Pricing Impact on Users: Socioeconomic Study on I-85 HOV2 to HOT3 Conversion (September 2013)
  7. The I-85 HOT Lane’s Impact on Atlanta’s Commuter Bus and Vanpool Occupancy (September 2013)

University(ies): 

Georgia Institute of Technology

ESTIMATED IMPACT OF GDOT’S HIGHWAY EXPENDITURES ON EMPLOYMENT, INCOME, AND TOTAL VALUE ADDED IN HIGHWAY DISTRICTS, LOCAL AREAS, AND THE STATE OF GEORGIA: 2009-2013

Project Description: 

Well-designed transportation investments have many short-term and long-term economic benefits. They can spur economic growth, create jobs, boost labor productivity and profitability, increase efficiency and accelerate local and regional economic development. Given the anemic job growth in the US economy today, and the growing fiscal constraints imposed on public agencies, policy makers and stakeholders are increasingly demanding that impacts of infrastructure investments be quantified. This would allow scarce resources to be allocated more efficiently and effectively. 

This study measures the impact of GDOT’s highway expenditures on economic activity in the State of Georgia. The study examines impacts at three levels (1) Statewide impacts; (2) Impacts within GDOT Highway Districts; and (3) County impacts. The timeframe of the analysis is January 2009 through May 2013. During this period, GDOT spent $3.6 billion on highway projects. Each project expenditure had a ripple effect on economic activity in local areas.

Posters:

  1. Economic Development and Workforce Impacts of State DOT Highweay Expenditures: 2009-2013 (September 2015)
  2. Estimated Impact of GDOT’s Highway Expenditures on Employment, Income and Total Value Added in Highway Districts, Local Areas and the State of Georgia: 2009 – 2013 (September 2013)

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University(ies): 

Georgia Institute of Technology

EVALUATION OF GDOT’S SMALL BUSINESS PROGRAM AND OVERCONCENTRATION IN CERTAIN PROCUREMENT CATEGORIES

University(ies): 

Georgia Institute of Technology

Project Description: 

The objective is to assist Georgia Department of Transportation (GDOT) in developing the most effective policies and strategies for implementing a set-aside program and to assist GDOT in implementing the most appropriate policies and strategies for reducing the burden of overconcentration on non-DBEs.

Posters:

  1. Evaluation of GDOT’s Small Business Program (September 2015)

Web Links: 

TRB Research in Progress

GDOT LOCAL BENEFICIARY ANALYSIS OF TIA PROJECT EXPENDITURES: (ESTABLISHMENT OF BASELINE CONDITIONS AND EXPECTATIONS

Project Description: 

The objective of this project is to provide the Georgia Department of Transportation (GDOT) planners and local stakeholders a framework for determining how traffic impact analysis (TIA) project expenditures in River Valley, Heart of Georgia Altamaha, and Central Savannah River Valley are expected to impact the economic, environment and quality of life in the areas.

Posters:

  1. GDOT Local Beneficiary of Analysis of TIA Project Expenditures (September 2015)

Web Links: 

TRB Research in Progress 

FIELD TESTING OF MARTLET WIRELESS SENSING SYSTEM ON AN IN-SERVICE PRE-STRESSED CONCRETE HIGHWAY BRIDGE

Project Details: 

Field Validation of a Drive-By Bridge Inspection System with Wireless BWIM + NDE Devices

PI: 

Xi Liu, Xinjun Dong, Yang Wang, Nasim Uddin, Laurence J. Jacobs, Jin-Yeon Kim

Participating University: 

Georgia Institute of Technology, University of Alabama Birmingham

Type: 

Asset Management

FIELD VALIDATION OF A DRIVE-BY BRIDGE INSPECTION SYSTEM WITH WIRELESS BWIM + NDE DEVICES

University(ies): 

Georgia Institute of Technology

Project Description: 

In this project, a wireless sensor network will be investigated for installation on a heavy truck to record the dynamic response of the truck as it crosses a bridge mounted with BWIM+NDE devices. The sensors installed in the vehicle include accelerometers to measure vibration and gyroscopes to capture vehicle pitching motion. As the instrumented vehicle approaches the bridge, BWIM+NDE system wirelessly establishes communication with wireless sensors on the vehicle to synchronize time and initiate data collection. As the truck crosses the bridge, the wireless sensors on the truck transmit vibration and pitching data to the wireless BWIM+NDE server for automatic integration with bridge response data. Experimental validation of the proposed wireless system will be performed both in the lab and in the field.

Presentation:

  1. “Drive-by Bridge Damage Evaluation Using Relative Displacement History“, presented at the 2015 UTC Conference for the Southeastern Region in Birmingham, Alabama, March 26-27, 2015.
  2. “Field Validation of a Drive-By Bridge Inspection System with Wireless BWIM+NDE Devices”, presented at the 2015 UTC Conference for the Southeastern Region in Birmingham, Alabama, March 26

Posters:

  1. Field Testing of Martlet Wireless Sensing System on an In-Service Pre-stressed Concrete Highway Bridge (September 2015)
  2. Field Validation of a Drive-By Bridge Inspection System with Wireless BWIM+NDE Devices (September 2014)

​Publications:

  1. Zhao, Z. and Uddin, N. “Determination of Dynamic Amplification Factors Using Site-Specific B-WIM Data” ASCE Journal of Bridge Engineering, Vol. 19, No. 1, January 1, 2014.
  2. Zhao, Z. and Uddin, N. “Field Calibrated Simulation Model to Perform Bridge Safety Analyses against Extreme Events’, Journal of Engineering Structures, 56 (2013) 2253–2262.

Web Links: 

Project Information Forms:

Zhu, D., Dong, X. and Wang, Y. “Substructure model updating through iterative minimization of modal dynamic residual,” Proceedings of SPIE, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security, San Diego, California, USA, March 10-13, 2014.

Kane, M., Zhu, D., Hirose, M., Dong, X., Winter, B., Häckell, M., Lynch, J.P., Wang, Y. and Swartz, A. “Development of an extensible dual-core wireless sensing node for cyber-physical systems,” Proceedings of SPIE, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security , San Diego, California, USA, March 10-13, 2014.

Dong, X., Chen, S., Zhu, D., Kane, M., Wang, Y. and Lynch, J.P. “High-speed heterogeneous data acquisition using Martlet – a next-generation wireless sensing device,” Proceedings of the Sixth World Conference on Structural Control and Monitoring (6WCSCM), Barcelona, Spain, July 15-17, 2014.

Zhu, D., Dong, X. and Wang, Y. “Substructure finite element model updating of a space frame structure by minimization of modal dynamic residual,” Proceedings of the Sixth World Conference on Structural Control and Monitoring (6WCSCM), Barcelona, Spain, July 15-17, 2014.

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University(ies): 

Georgia Institute of Technology

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BICYCLE AND PEDESTRIAN SAFETY IN THE HIGHWAY SAFETY MANUAL

Project Details: 

The objectives of this project are to: (1) develop a planning level tool that will aid the Georgia Department of Transportation (GDOT) in assessing the safety improvements associated with pedestrian and bicycle facilities in Georgia; and (2) provide design guidance for cost effective and safe pedestrian and bicycle facilities relevant to Georgia traffic and infrastructure.

PI: 

Jonathan DiGioa, Alice Grossman, Anagha Krishnan, Yanzhi “Ann” Xu, Randall Guensler, Michael O. Rodgers, Kari E. Watkins

Participating University: 

Georgia Institute of Technology