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The Influence of Custodial Care of Children Among Elderly African Americans on Their Travel Behavior and Transportation Needs
The objective of this project is to analyze the increasing trend and the elevated numbers of elderly-headed households who have partial or sole care for children under the age of eighteen. The analysis of this group will allow for a better understanding of this often-neglected group who typically relies on public transportation or the transportation assistance of others. To provide a better understanding of their travel behavior and travel needs, data from the 2002 Nationwide Personal Transportation Survey (NPTS) will be analyzed, exploring variables such as age, gender, race, income, region
of the country, and household structure. The proposed study will also examine a variety of travel descriptors such travel mode, person trips, vehicle trips, and both work and non-work trips. In addition, the proposed research project will conduct research on elderly focus
groups who are engaged in "second parenthoods" in Baltimore City in order to complement and obtain a better and more detailed understanding of how "second parenthoods" affect their travel behavior and needs, and the new transportation technologies that may be necessary in order to meet their transportation needs. Lastly, limited comparisons will be made controlling for household structure, between the travel behaviors of otherwise comparable groups at different lifecycle stages.
Start Date:
July 1, 2007
End Date:
December 31, 2008
Status: Active
Contract/Grant Number:
0608-002
Sponsor Organization:
National Center for Transportation Management, Research, and Development
Morgan State University
http://www.eng.morgan.edu/~ntc/
Project Manager:
Performing
Organization:
National Center for Transportation Management, Research, and Development
Morgan State University
http://www.eng.morgan.edu/~ntc/
Principal Investigators:
Robert J. Smith,
Ph.D. and Stella Hargett, Ph.D.
National Transportation Center
Morgan State University, Montebello D-206
Baltimore, MD 21251
Phone: 443-885-3518
Phone: 443-885-3290
Subjects:
Transportation
Patterns
Transportation Needs
Urban Elderly
African Americans Elderly
Household Structure
Lifecycle Stages
Grandchildren
Elderly-headed Households
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Estimation
of Traffic Recovery Time for Different Flow Regimes on Freeways
The objective of this project is threefold: (1) To develop, calibrate, and validate a microscopic simulation model capable of reasonably depicting the prevailing traffic-flow conditions on selected segments of freeways with known design parameters; (2) To develop incident scenarios involving different durations and traffic intensities, and capture the resulting traffic recovery times; and (3) To develop and document
mathematical and/or graphical relationships between incident duration and traffic recovery time for different values of traffic intensity (i.e., volume-capacity ratio). The results of this study will help the Maryland State Highway Administration (SHA) develop measures to deal with recovery time after incidents. This will enhance SHA’s ability to mitigate the impact of congestion and delay on Maryland’s highway network.
Sponsor Organizations:
Maryland State Highway Administration
National Center for Transportation Management, Research, and Development
Morgan State University, Montebello D-206
1700 East Cold Spring Lane
Baltimore, MD 21251
http://www.eng.morgan.edu/~ntc/
Performing Organization:
National Center for Transportation Management, Research, and Development
Morgan State University
http://www.eng.morgan.edu/~ntc/
Project Managers:
J. Point-du-Jour
Phone: 410-787-5866
Barbara Adkins
Phone: 410-545-5551
Fax: 410-209-5051
Email: badkins@sha.state.md.us
Egua Igbinosun
Phone: 410-787-5873
Email: eigbinosun@sha.state.md.us
Principal Investigator:
Anthony Saka
Subjects:
Data and Information
Technology
Operations and Traffic Management
Research
Highways
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Implementation of the Concrete Maturity Meter for Maryland
The current study “Use of Maturity Meters in Concrete Acceptance” is evaluating different types of maturity technologies and the ability of lab developed correlation curves to predict the strength of the same concrete mix on subsequent projects. The preliminary results have shown that the maturity concept is viable and that correlation curves can accurately estimate in-place concrete strength. The objective of this study will be to develop a specification that will allow the use of the Maturity Meter method in Maryland.
Start date: September 25, 2008
End date: Sepetmber 30, 2009
Status: Active
Contract/Grant Number: SP708B4K
Total Dollars: $30,069
Source Organization: Maryland Department of Transportation
Date Added: February 27, 2007
Index Terms: concrete, concrete strength, concrete maturity, concrete maturity predictions, concrete mixtures, Maryland, maturity meters, research projects
Sponsor Organizations:
Maryland State Highway Administration
2323 West Joppa Road
Brooklandville, MD 21022
National Center for Transportation Management, Research and Development
Morgan State University, Montebello D-206
1700 East Cold Spring Lane
Baltimore, MD 21251
http://www.eng.morgan.edu/~ntc/
Project Managers:
Hua Xiang
Phone: 410- 545-2953
Email: hxiang@sha.state.md.us
Rodney Wynn
Phone: 410-545-2918
Fax: 410-209-5015
Email: rwynn@sha.state.md.us
Performing Organization:
Morgan State
University
School of Engineering
Cold Spring Lane and Hillen Road
Baltimore, MD 21239
Principal
Investigator:
Robert Johnson
robert.johnson@morgan.edu
Subjects:
Construction
Materials
Research
Highways
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