Documents in the NTIS Technical Reports collection are the results of federally funded research. They are directly submitted to or collected by NTIS from Federal agencies for permanent accessibility to industry, academia and the public.  Before purchasing from NTIS, you may want to check for free access from (1) the issuing organization's website; (2) the U.S. Government Printing Office's Federal Digital System website; (3) the federal government Internet portal; or (4) a web search conducted using a commercial search engine such as
Accession Number PB2014-106573
Title Work Zone Traffic Analysis and Impact Assessment.
Publication Date Jan 2014
Media Count 144p
Personal Author A. Hajbabaie A. Jia B. J. Schroeder B. M. Williams N. M. Rouphail
Abstract This report documents the final results and project summary of NCDOT research project 2012/36: Work Zone Traffic Analysis & Impact Assessment. The project is tasked with assessing the estimated impact of proposed NCDOT TIP Project I-5311/I-5338, which is a pavement rehabilitation project on interstates I-40 and I-440 from Exit 293 to I-40 Exit 301 and I-440 Exit 14. The project aims to predict the network-wide impacts of this work zone during construction. The primary focus in the project and in this report is the development and calibration of a networkwide mesoscopic simulation model of the Triangle region using the DynusT and DTALite software tools, as well as a macroscopic evaluation in the FREEVAL tool. The geometric extents of the model cover the entire triangle region, with expansion to the east of the triangle to include additional sections of US264, I-40, and I-95. The model has been calibrated using field-estimated spot volume and speed data, as well as key route travel times obtained from INRIX. A variety of work zone scenarios were modeled to test the relative impacts of different lane closure configurations on route and network performance. The analysis further differentiates between no-diversion and with-diversion, where the latter relies on twenty iterations of a dynamic traffic assignment utility, which diverts traffic in an effort to minimize overall network travel time.
Keywords Data collection
Impact assessment
Mesoscopic simulation
Network calibration
North Carolina
Pavement rehabilitation
Traffic analysis
Work zone traffic

Source Agency Federal Highway Administration
NTIS Subject Category 43G - Transportation
50A - Highway Engineering
85H - Road Transportation
91B - Transportation & Traffic Planning
Corporate Author UNC Inst. for Transportation Research and Education, Raleigh, NC.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1419
Contract Number N/A

Science and Technology Highlights

See a sampling of the latest scientific, technical and engineering information from NTIS in the NTIS Technical Reports Newsletter

Acrobat Reader Mobile    Acrobat Reader