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Laboratory of Railways and Transport

Director: Professor Antony Stathopoulos

The Laboratory of Railways and Transport is one of the 15 laboratories of the School of Civil Engineering and belongs, academically, to the Department of Transportation Planning and Engineering. It has a history of over 25 years during which both contractual and non-contractual (basic) research has been conducted in its facilities located at the Zografou Campus in Athens.

Below is a list of representative research projects.

  The Multimodal Map of Greater Athens is a continuation (and expansion) of the Laboratory's legacy application of The Athens Real-Time Traffic Congestion & Map (files: Central View of the Original Athens Real-Time Map (pdf - 120kb), About the Athens Real-Time Map (pdf - 108kb) and Questionnaire Evaluation Results (pdf - 116kb))
Athens Traffic Map

Proceedings of the Conference "Olympic Transport System - The Day After"
Organized by the Hellenic Institute of Transportation Engineering and The Dept. of Transportation Planning and Engineering, NTUA, Athens , 26 October 2004.

Session A.
Road Infrastructure and Traffic Management
Session . Modes of Mass Transport - Infrastructure and Operation
Session C. Metropolitan Management - Experience and Prospects

Edited by: A. Stathopoulos (NTUA)
ISBN: 960-254-652-2

"Development of a methodology and algorithms for the estimation of the demand distribution to the Public Transport Companies during Special Events", Athens Public Transport Organization, 2004.

The scope of the proposed research program is the development of a prototype methodology appropriate for the estimation of the use of Public Transport Means during special events (athletic or cultural events). In order to realize the program, the development of a theoretical methodology with proper solution algorithms is necessary and also the collection of the necessary data during the special event, which will be used for the satisfactory fitting and application of the methodology.

"Scientific support for the System Planning of the Urban Public Transport of the Athens Region", Athens Public Transport Organization, 2002-2003.

his project aims to the scientific support for the planning of the operation and management of the Athens Public Transport System, including both subsystems and the total network. The targets of this project include also the identification of areas within the operating structure of the system, which allow improvements as well as consultancy services regarding mid-term targets proposals. The purpose of the project is double:

. develop and formulate a framework of principles and targets, in order to form a strategic plan, based n the needs of the service providers, as well as to support technically and scientifically the writing of the necessary specifications for tenders for the "Master Plan of Transport Systems".

II. support the organization of an international conference n planning, operating and managing urban transport systems.

"e-Traffic - Traffic Information System", Attiki Prefecture, 2003-2005.

The objective of research project is the development of a modem traffic information service for the central area of Attiki for the improvement of the urban transport conditions and the optimum use of the existing and under construction infrastructure through the continuous offer to the users of the system of the available information for the existing traffic conditions. In order to achieve the above objectives the Attika intermodal transport systems and the user requirements will be analysed. real time traffic conditions assessment model will be developed and the traffic information system will be enhanced. The development of user interfaces and the pilot field operation of the proposed system as well as its evaluation will follow. Finally, a study for the forecast of transport technological and innovation perspectives in the Attika area will be conducted.

"Framework Architecture Made for Europe - Support", European Commission, 2001-2004.

The FRAME-S (Framework Architecture made for Europe -Support) Project objective is to support the deployment of the European ITS Framework Architecture. The Architecture was developed by the KAREN Project (TR4108 in the 4 th Framework Programme) and is often caIIed the "KAREN Architecture". The FRAME-S Project wiII support the Framework Architecture deployment within Europe in several ways. Firstly it wiII produce training material, run workshops and provide assistance to the Architecture deployment and use. Secondly it wiII produce Architecture updates correcting inconsistencies and incorporating ITS developments. FinaIIy, it wiII provide a tool to help users navigate the Architecture deliverables and adapt it to suit particular deployments. The FRAME-S Project wiII work closely with the FRAME-NET Thematic Network Project, which is managing a European ITS Architecture Users Group. The updated Framework Architectures, the tool and the training material wiII be made available on the FRAME Web Site.

"Impacts of the environment from the application of alternative traffic management scenario: Proposals - means - regulations", Ministry of Environment, Physical Planning and Public Works, 1999-2000.

The scope of this research is the estimation of the impacts on the environment from the application of alternative traffic management scenaria in the urban area of Athens. achieve this, appropriate tools for the investigation and estimation of the traffic environmental, social and financial impacts of the scenaria will be developed. Alternative schemes will be formed concerning the management of travel demand and traffic management in the area under study .The next step is the formation of the required measurements that satisfy the requirement for reduction of air pollution, and then formulation of all required institutional, Iegal and administrative regulations.

"Impacts of the work time schedules on the traffic conditions and the environment. Suggestions - measurements - regulations", Ministry of Environment, Physical Planning and Public Works, 1998-1999.

Assessment of the traffic environment, social and financial impacts from the application of various work time schedules (continuous, graduated, flexible etc.) in the Athens greater area and in various job sectors.

Using the findings, the best scenario will be proposed by the study as well as the necessary regulations (administrative etc.) for its application, aiming the attainment of the greater feasible reduction of the environment due to on the traffic and the work- based trips, with the minimization of the socio-economic cost.

"Scientific/ Technical Advisor Services for the parking areas at the New Athens international Airport", Athens International Airport S.A., 1998.

The Scientific/ Technical Advisor Services are concerning the assistance of the Athens International Airport S.A. in auditing a pre-feasibility study "for the assessment an evaluation of building parking areas at the New Athens Airport". Evaluation will be conducted according to the following criteria: (i) Environmental aspects, (ii) Planning and operational/ design concepts, (iii) Cost aspects

"Extra financing methods for the Athens Public Transport companies", Urban Transport Organization of Athens (OASA), 1998.

The present research is dealing with the possibility of finding additional funding for the Athens Public Transport companies, from both private and public interests to the extend that they gain economic benefits from the improvements of the transportation system (e.g. increase in land values). The development of proper mechanism is investigated to capture some of the above gains in the form of contribution, which relates to the concepts of "value capture" and "benefit sharing". Relevant published programs will be compared and the final evaluation will be performed by the use of affinity matrices and the development of scenarios, considering the possible social, legal, and administrative impacts.

QUADRlLATERAL ADVANCED RESEARCH TELEMATICS FOR ENVIRONMENT D TRANSPORT -EXTENSION (QUARTEX) -IRTE ARCHITECTURE, CEC, DG , Programme DRIVE , 1995.

KERNEL PROJECT IMPACTS OF TRANSPORT TELEMATICS ENVIRONMENT (), CEC, DG Programme DRIVE , 1994.

PRESTRESSED CONCRETE SPLEEPER FOR STANDARD GAUGE, Hellenic Railways Organisation (CH), 1993.

COMBINED TRANSPORT CORRIDOR GREECE-ITALY-GERMANY.

CEC, DG VII, 1993.

AUTOMATIC DEBITING D ELECTRONIC FOR TRANSPORT (ADEPT) -LARGE SCALE PILOT LISBON, CEC, DG , Programme DRIVE , 1992.

QUADRILATERAL ADVANCED RESEARCH TELEMATICS FOR ENVIRONMENT D TRANSPORT (QUARTET) -LARGE SCALE PILOT ATHENS, CEC, DG , Programme DRIVE , 1992.

LINE CAPACITY ANALYSIS OVER TITHOREA-DOMOKOS SECTION BETWEEN ATHENS D THESSALONIKI, Hellenic Railways Organisation (CH), 1991

FEASIBILITY RESEARCH STUDY OF HELLENIC RAILWAYS NETWORK LINK IGOUMENITSA D AL RAILWAYS NETWORK, Hellenic Railways Organisation (CH), 1991

SMART INTERMODAL EUROPEAN TRANSFER, CEC, 1991

PARKING MANAGEMENT, CONTROL D INFORMATION SYSTEM ( ARCMAN). -LARGE SCALE PILOT ATHENS, CEC, DG , Programme DRIVE I, 1989.

FRAMEWORK FOR INTEGRATED DYNAMIC LYSIS OF TRAVEL D TRAFFIC (FRIDA), CEC, DG , Programme DRIVE I, 1989.

EVALUATING USERS RESPONSES NEW EUROPEAN TRANSPORT TECHNOLOGIES ( UR TT ), CEC, DG , Programme DRIVE I, 1989.

VALUATION PROCESS FOR ROAD TRANSPORT INFORMATICS ( EV ),

CEC, DG , Programme DRIVE I, 1989.

INTERMODAL ANALYSIS OF TRANS-EUROPEAN MOTORWAY () TRANSPORT CORRIDOR, Ministry of National Economy, 1988.

"Techno-economic Study of the Development of a City-Centre Bus System", EEC (DG ) and Greek Ministry of Environment, Physical Planning and Public Works, 1987.

The broad objective of this research project was to assess the effectiveness of public transportation and traffic management measures on transportation related air pollution of Athens. The project sought to isolate the environmental impact of bus traffic in relation to the overall vehicular traffic. The modelling simulated the motion of each vehicle in a city street network. It was able to treat all major forms of traffic control, including stop signs, fixed traffic signals and vehicle-actuated signals. Moreover, it kept track of the positions of all vehicles as they were moving through the network, and simulated variations in emissions densities along network links. As the specific goal of this research was the development of a bus system, alternative schemes were tested against a set of criteria including system capacity, level of service, mobility and existing and forecast urban patterns. The potential effectiveness of transportation and traffic management measures in improving air quality were obtained by investigating the relative magnitudes of the emissions caused by trips with different purposes, origins and destinations, and times of day. This investigation helped to broadly establish the effects of transportation and traffic management schemes as well as current auto engine technologies on emissions and concentrations of air pollutants.

"Low Cost Detection of Accident Propensity and Control Strategies, for Two-lane Highways", EEC (DG VII) under a Grant for the Road Safety Year, 1986.

The overall objective of the project was to improve traffic safety on two-lane highways through the promotion of low-cost electronic traffic aids for detection of accident-prone traffic conditions and communication with drivers. Previous research conducted by the Lab. of Railways and Transport of NTUA had demonstrated that a system of automatic recording of passing rate and overtaking speed on accident-prone locations could yield promising results. Experimental sites have been set up to monitor illegal overtakings and their relation to platooning and congestion along a traffic stream. Control strategies were developed to activate warning signs to be displayed on both directions of traffic, aiming to the reduction of risk of cross-centreline accidents. Control measures were supplemented by changeable speed limit signs extending upstream in order to regulate traffic flow operations. This research programme was concerned only with the experimental side inasmuch as data collection methods and control algorithms were devised and successfully tested.

"Simulation of Container Terminals: a Validation l", Greek Ministry of Industry , Energy and Technology, 1986.

This research aimed to develop and validate a simulation model -based on Computer Aided Interactive Graphics- by animating operations at the Piraeus Container Terminal in a form of top-view sequence. The model enabled the investigation of the behaviour of the simulated system under different configurations: yard layout, container stacking rules, equipment allocation rules and service priority strategies.

"Evaluation of Traffic Conditions and their Contribution t the ir Pollution", EEC (DG XI) and Greek Ministry of Environment, Physical Planning and Public Works, 1985.

This research programme has been executed in two phases: the first, which lasted for 12 months, dealt with the problem at a local level. The objective of the latter phase, which started in 1984, was the detailed investigation of pollution levels, of traffic patterns and the conditions of traffic operations, as well as their relationship with the resultant pollution. Central Athens, where the problems of pollution, were known to be intense was chosen as the study area. The procedure consisted of the 3 stages: diagnosis, prediction and control, at local and at network level. In the stage of diagnosis the existing situation was recorded by taking measurements of the concentration of pollutants, of traffic conditions as well as the registering of the parameters which affect their formation, e.g. wind records, town planning characteristics, traffic signalisation schemes etc. It was followed by the theoretical formulation and the calibration of models for the prediction of carbon monoxide concentrations. The stage of prediction dealt with the prediction of carbon monoxide and nitrogen oxides concentrations (regarded as air quality indicators) at network level.