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Torfehnejad H.,ITS Group | Adamnejad S.,Road Maintenance and Transportation Organization
21st World Congress on Intelligent Transport Systems, ITSWC 2014: Reinventing Transportation in Our Connected World | Year: 2014

The problem addressed in this paper is the design of a simple and applicable approach with considering macroscopic model and stochastic discrete variables to detection of freeway abnormal traffic flow like incident, classified congestion, exit of congestion and so on. The goal is to design an algorithm that 1) directly use data from conventional presence detectors which provide binary information at each point in time, indicating the number of passed vehicles and mean time speed; and 2) minimize human operator requirement in detection, classification, and isolation of incident events. Using autocorrelation of the time series samples of density and flow which are collected from segments with predefined specifications is the main technique to detect the trend in flow and density changes if exist. A table of possibilities for flow and density changes in two sequential segments will help to detect congestion or any other abnormal traffic events. Source


Torfehnejad H.,ITS Group
17th ITS World Congress | Year: 2010

After successful project, real time traffic counting system, in last year which had used the GSM network to communicate between traffic counter and TMC (Traffic Management System), this project designed by RMTO as a pilot project to control the VSL (Variable Speed Limit) signs and VMS (Variable Message Sign) in basis of the traffic conditions information. This paper documents the necessity of using and controlling the VSL and VMS and reviews the pilot project which is under development in Iran.The method of congestion detection and conducting the data processing in TMC and communicating to VSL, VMS, and Traffic counters would be discus in this paper. Source


Headen R.C.,Bricker and Eckler Public Finance and Project Finance groups | Bloomfield S.W.,ITS Group | Warnock M.,Bricker and Eckler LLP in the firms Energy Environmental practice group | Bell C.,Public Finance Practice Group
Electricity Journal | Year: 2011

Property Assessed Clean Energy programs in Ohio represent one of the newest mechanisms available for financing energy efficiency and renewable energy improvements. PACE programs allow qualifying energy improvements to be financed through assessments on a property owner's real estate tax bill. The special assessments are used to secure local government bonds issued to fund the improvements without requiring the borrower or the sponsoring local government to pledge its credit. © 2010 Raymond C. Headen. Source


McBride C.,ITS Group | Wee L.,NZTA
Traffic Engineering and Control | Year: 2012

Variable message sign (VMS), a road sign capable of displaying messages that may be changed or switched on, were installed on Auckland Motorways with the purpose of delivering warnings about traffic incidents and specific delays. VMS messages may be described in two broad classes, reactive incident messages or proactive messages. A VMS must be operated in a credible way in order to be effective. When accurate, automated, real time motorway travel time estimates are available; that information is generally displayed on mainline VMS. Each VMS message must be credible, accurate and immediate in order for drivers to notice that message. Consciously noticing VMS messages offers drivers the maximum time to adjust their perception and behavior. Source


Mortimer K.,ITS Group
Traffic Engineering and Control | Year: 2011

Keith Mortimer reflects on the 4th Annual Conference of the ITS (UK) Road User Charging Group chaired by him. Keith Mortimer chaired the RUC Group's Conference, sponsored by AGES International and CitySync, where a wide range of case studies highlighted technical, financial and legal current practice. Phil Harris of Thales Research & Technology brought the results of the TSB-funded VEER project. VEER was established to examine the delivery of robust positioning in typical ITS applications, and Phil focussd on how the issue could be addressed through sensor fusion and map- matching techniques in challenging city environments. EGIS Projects' Marketing Director Steve Morello compared a number of Payment Clearing House developments in New South Wales, Ireland, France and the Philippines, illustrating best practice in implementing information exchange networks for resettlement of tolling and related payments at lowest operational cost. Source

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