Details:

Alternative Title:
Arterial data acquisition and network-wide travel time estimation : phase II
Creators:
Davis, Gary A. ; Hourdos, John ; Xiong, Hui ; Morris, Ted
Davis, Gary A. ; Hourdos, John ; Xiong, Hui ; Morris, Ted Less -
Corporate Creators:
University of Minnesota. Dept. of Civil Engineering
Corporate Contributors:
Minnesota. Dept. of Transportation. Research Services Section
Subject/TRT Terms:
[+]
Arterial Highways Traffic Estimation Traffic Signals Traffic Surveillance Travel Time Travel Time (Traffic Engineering)
Publication/ Report Number:
MN/RC 2010-12
Resource Type:
Tech Report
Geographical Coverage:
Minnesota
Edition:
Final report.
Abstract:
The objectives of this project were to (a) produce historic estimates of travel times on Twin-Cities arterials

for 1995 and 2005, and (b) develop an initial architecture and database that could, in the future, produce timely

estimates of arterial traffic volumes and travel times. Our Phase I field study indicated that on arterial links where

both the demand traffic volume and the signal timing are known, model-based estimates of travel time that are on

average within 10% of measured values can be obtained. Phase II of this project then focused on applying this

approach to the entire Twin Cities arterial system. The Phase II effort divided into three main subtasks: (1)

updating estimates of demand traffic volume obtained from a transportation planning model to make them

consistent with available volume measurements, (2) collecting information on traffic signal locations in the Twin

Cities and compiling this into a geographic database, and (3) combining the updated traffic volumes and signal

information to produce link-by-link peak-period travel time estimates. The traffic volume update took as inputs the

predicted volumes generated by a traffic assignment model and measured average annual daily traffic from

automatic traffic recorders, and gave as output updated estimates of the traffic volumes for links lacking automatic

traffic recorders. A request to state, county and municipal agencies in the seven-county metro area produced

Information on approximately 2,900 traffic signals. Estimated arterial travel times for the morning and afternoon

peak periods for 1995 and 2005 were then computed and sent to other components of the Access to Destinations

effort.


Format:
PDF
Funding:
(c) 89261 (wo) 43
Collection(s):
US Transportation Collection
Main Document Checksum:
[+]
urn:sha256:d00a1a228f24aaad09bd622018e6c41ad287da7b1b45ac19308247aadd6c3f94
Download URL:
https://rosap.ntl.bts.gov/view/dot/5761/dot_5761_DS1.pdf
File Type:

Supporting Files

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