engleski

Measurement of public transport performance indicators by PDA computer system

Public transport (PT) performance indicators are quantitative attributes that are related to the quality of public transport service. The performance indicators are not unambiguously and universally defined, instead their selection depends on the specific study or project. The most frequent performance indicators that are currently used are, for instance: commercial speed in the corridor, delay time, accuracy of timekeeping, etc. For the calculation of values of these indicators, the required data includes the time positions of vehicles on the defined points of the traffic network. The past measurement practice included the measurer who used a stopwatch to record the times at the control points into tables which were prepared prior to the measurement. The data was then imported into a computer and along with other data, the indicator values were calculated. This paper shows a new method of measuring values of performance indicators by the means of PDA (Personal Digital Assistant) device which uses “Windows Mobile” operating system. For this purpose a software application was developed in the “Visual studio” programming environment, using “C#” programming language. The application was named “TRAM FPZ”. The developed application was tested on the Savska cesta Street corridor on tramway network. From the measurer perspective the implementation of such application requires less effort with a very user-friendly application interface. The measured data is more accurate and more reliable, and indicator values are obtained immediately. The main purpose of the developed application is to serve as a system which may be used to evaluate the accuracy of end results when different measurement techniques are deployed, i.e. fully automatic system which integrates the capabilities of GPS and PDA devices.

public transport performance indicators; software support; mobile application; tramway traffic; UML

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