2012, volume 13 #3. "Transport and Telecommunication". Журнал издательства TSI, ISSN 1407-6160, ISSN 1407-6179 | TSI

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2012, volume 13 #3. "Transport and Telecommunication". Журнал издательства TSI, ISSN 1407-6160, ISSN 1407-6179

 

ASSESSMENT OF RAIL FREIGHT TRANSPORT SERVICE QUALITY

Ramūnas Palšaitis1, Andrejus Ponomariovas2

1Vilnius Gediminas Technical University, Department of Transport Management Plytines str. 27, Vilnius, LT-10105, Lithuania E-mail: trvadyba@ti.vgtu.lt
2Lithuanian Railways, Freight Transportation Directorate Mindaugo str. 12/14, Vilnius, LT-03603, Lithuania E-mail: a.ponomariovas@litrail.lt

Investigations show a growth of requirements for goods transportation quality by rail. There is a need to analyse in details goods transportation system by rail to meet requirements of market and give extra boost to development transportation service quality. The purpose of the current article is to give a partial overview about the experts, freight forwarders and customers’ survey results. The analysis of customers’ answers showed that they are not fully satisfied with quality of the service. It was identified that freight forwarders and other transportation service providers must carry out regular self-assessment of performance against defined criteria of service. Clear and united criteria of cargo transportation quality by rail will make easier to choose transport mode, transport means and route. The survey data and literature analysis showed that there is a vast range of criteria to be proposed for rail service quality evaluation, but no one of the models is prevailing. The analysis showed that most often the mentioned criteria are linked with the information, rolling stock, reliability and punctuality.

Keywords: rail freight, quality indicators, forwarders

MOBILE PHONE ACCIDENTS – EXPERIENCE OF INDIA

H. Abdul Shabeer1, Wahida Banu2

1Anna University, Coimbatore E-mail: abdulshabeer@gmail.com
2Principal Government College of Engineering, Salem

Every year nearly 1.4 million people have been killed because of they are wireless customers and their over-bearing cell phones. While in India, an estimated 1.35 lakhs person died due to road accident in 2010, which is approximately 10% of road accident fatalities worldwide and these figures are the highest in the world. But still no research has been carried out to find the number of drivers using cell phone involved in road accident and very limited efforts has been carried out to prevent accident due to cell phone usage. To our knowledge this is the first survey carried out in India to determine the number of drivers involved in an accident due to mobile phone use. With the aim of preventing such accidents, it is proposed to develop a highly efficient automatic system for early detection of incoming and outgoing call, by placing an antenna along with mobile detection unit above the driver seat. This unit is capable of distinguishing whether the cell phone used either by the driver or by the passenger, if the driver uses of cell phone is detected, a safety application named Cellphone Accident Preventer (C.A.P.) which is developed using J2ME will be automatically load on the driver’s cell phone which helps in eliminating the risk of accidents from occurring, at the same time ensuring that the user does not miss any emergency call. The research has been extended to show how far the system will help in preventing accidents and to what extent this system will help in reducing the Indian economic loss incurred unnecessarily due to road accident fatalities.

Keywords: Mobile Phone Accident, location of vehicle using a mobile phone, cell phone detection, Mobile safety application, Risk of using a mobile phone, Mobile Jammer

CONSIDERATION OF THE ASPECTS OF THE TRANSPORTATION SYSTEMS MICROSCOPIC MODEL APPLICATION AS PART OF A DECISION SUPPORT SYSTEM

Elena Yurshevich1, Irina Yatskiv2

Transport and Telecommunication Institute Department of Mathematical Methods and Modelling Lomonosova str. 1a, Riga, LV-1019, Latvia
1Phone: +371-67100564. Fax: +371-7100535. E-mail: Jurshevicha.J@tsi.lv
2Phone: +371-67100544. Fax: +371-7100535. E-mail: Jackiva.I@tsi.lv

The article presents the experience in using decision support system (DSS) when managing urban transport system (UTS) and a possibility of using microscopic modelling as an integral part of the decision-support system (DSS) when managing the urban TS. To illustrate the problem and a possible DSS-based solution, an example of a specific project has been examined, where microscopic modelling was used for the analysis of possible reconstruction of a transport system (TS) fragment in the city of Riga, – which was performed in 2010 in the laboratory of applied software systems of the Transport and Telecommunication Institute (in Riga). The project goal was the consideration of expediency for implementation of a pedestrian area in the street of city centre with the existing street traffic. The article formulates some problems that occurred in the process of development and application of simulation model for analysing various scenarios; some possible alternatives of their solution are suggested. An alternative of possible DSS architecture for managing TS in Riga is suggested; some requirements to the data handling and organization in the system are examined. Special attention has been paid to the problem of synchronizing the data handling of macroscopic and microscopic models of urban TS. The article formulates the requirements to organization of data transmission interface between macroscopic and microscopic data. The suggested DSS concept can be used when solving various problems of transportation planning.

Keywords: Decision Support Systems, Urban Transportation System, Microscopic Model, Data Requirements, Macroscopic Model Integration

URBAN PUBLIC TRANSPORT SYSTEM’S RELIABILITY ESTIMATION USING MICROSCOPIC SIMULATION

Irina Yatskiv1, Irina Pticina2, Mihails Savrasovs3

Transport and Telecommunication Institute Lomonosova 1, Riga, LV-1019, Latvia 1Ph.: (+371)-67100544. E-mail: Jackiva.I@tsi.lv
2Ph.: (+371)-67100584. E-mail: Pticina.I@tsi.lv
3Ph.: (+371)-67100584. E-mail: Savrasovs.M@tsi.lv

In the article the procedure of the reliability measures estimation for one route of the public transport network on the basis of a traffic flow modelling is suggested. A definition of UPTS reliability is based on the analysis of the Travel Time Reliability, Arrival Time Reliability and Probability of arriving to the stops with delay no more than m minutes. The approach is applied to the real task of the reliability estimation for Riga city public transport route. The microscopic model of transport network fragment is used for it.

Keywords: public transport, reliability, travel time, microscopic model

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