NDLI: Vehicular tunnel traffic-flow control

Content Provider	IEEE Xplore Digital Library
Author	Cunningham, R.F. White, C.F.
Copyright Year	1967
Abstract	A description of an operational vehicular tunnel traffic-flow control system is presented. Using photoconductive cells as vehicle detectors in the Lincoln Tunnel South Tube and a fixed logic hardware controller to activate traffic signals and signs at the tunnel entrance, traffic is metered in a manner which results in less congestion. The vehicle detectors use wall-mounted high-intensity light sources aimed at a cell which is located below a hole in the tunnel roadway. The cell is hard-wire connected to the logic controller. The controller, using discrete solid-state components, determines the number of vehicles between two points in a tunnel lane; in addition the controller calculates the speed of each vehicle at both points. Using these parameters, the controller decides if the entering traffic-flow rate should be lowered. If a decrease in the rate is warranted, amber traffic signals and a sign which states "pause here-then go" is then energized. When the threat of possible congestion is alleviated, the entrance controls are automatically de-energized by the controller. A comprehensive traffic-flow control and stoppage-detection system now being implemented is also discussed. This system will employ four small-scale digital computers working in pairs at both the Holland and Lincoln Tunnels. Basic raw data will come from both induction-loop vehicle detectors and photocell vehicle detectors arranged in alternating pairs at seven points in each of the ten traffic lanes comprising the two facilities. Output will consist of control signals to entrance traffic devices, as well as alarms designed to draw the attention of facility personnel to one of nine or more television monitors per tube showing the area of a detected stoppage.
Sponsorship	IEEE Vehicular Technology Society
Starting Page	120
Ending Page	127
Page Count	8
File Size	995916
File Format	PDF
ISSN	00189545
Volume Number	19
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1970-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Vehicle detection Automatic control Detectors Control systems Logic Photoconductivity Hardware Road vehicles Light sources Solid state circuits
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Automotive Engineering Computer Networks and Communications Electrical and Electronic Engineering Aerospace Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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