Regarding their main functions systems use to be divided on various manners. For example, according MIP/TEMPO project, following categories of the systems can be accepted as a basic:
– realizing weather and road surface monitoring, air quality monitoring, travel time data collection and other.
– having the means of data exchange, sharing data with traffic and transport managements, making cross-border data exchange and so on.
– distinguished systems of traffic management and control in transport corridors, urban and interurban areas, sections of road (e.g. tunnels, port parts and other), area-wide traffic management such as regional or inter-regional (within one Euro-regions).
– realizing access to pre-trip information for route planning and journey time estimating, to information of traffic conditions, weather conditions, even multi-modal pre-trip information. Giving access to on-trip information for navigation, diversion signs (obligatory diversion, recommended re-routing), warnings/advice for multimodal transport and other.
– control of the heavy goods vehicles traffic, improve safety conditions and coexistence of light and heavy vehicles on the roads, freight tracking, measures for freight inter-modality, efficiency of goods transfer, improved inter-modal information services for freight operators etc.,
– interoperable electronic systems for fee collection, electronic Euro-vignettes for heavy goods vehicles and other payments.
– realizing automatic incident detection and location, identification, integration of automatic systems vs. systems information exchanges.
More accurate survey of systems mentioned or described in specialist literature allows identifying following structural ordering:
• Groups of system (t. ex. Fee Collection),
• Particular systems (t. ex. Electronic Fee Collection),
• Subsystems (t. ex. automatic registration plate’s recognition for vehicle category identification),
• Circuits realizing informatic elementary functions (t. ex. obtaining the electronic pictures of the registration plate).
Such a division have to be helpful for formulation of the detailed the questions in the survey questionnaires.
3.2. INFORMATION SOURCES
The sources of information can be distinguished as direct and indirect. The first category comprises various types of subjects working with the implementation, exploitation and maintenance of telematic systems and therefore administering the original information sets laying in their disposal. The second category consists of sets of journals, Internet and databases of statistical institutions. All the sources taken together can be defined as a subject area of survey, if can be assumed that all the information have their possessor (or dispatcher) or comes from such one.
3.2.1. AREA OF DIRECT SOURCES
The area of direct sources i.e. subject area may – in a general, but essential from the planned survey point of view – be divided into mentioned below groups:
• Managing institutions, needing telematic systems for significant transport infrastructure improvement – like road administrations, operators and other;
• Telematic equipment and systems producers, fulfilling the market needs – i.e. equipment and service suppliers, contractors, installation enterprises etc.,
• Creators of development rules in the transport telematic area – as standardization, legislation and regulations institutions,
• Direct users of telematic systems – travelers, drivers, transport enterprises and other like those.
For the needs of data collection about existing systems those last can be neglected (they cannot be neglected when it concerns a survey of user needs what usually is done for example when deploying new system or enhancement o systems existing, but especially when builds a national architecture of intelligent systems).
3.2.2. AREA OF INDIRECT SOURCES
As indirect sources are classified those, which generates information created not directly accordingly to needs of data collection for telematic systems survey. Here are such as journals, firm pamphlets and publications on electronic form, especially related WWW sides. Yet have to be noted that information accessible in those sources are usually more or less out of the date.
For the reason of very big diversity of known telematic solutions, preparation of surveying techniques ensuring proper identification of this solutions requires careful elaboration of the method which be applied in practice for obtaining needed information. It means that first of all, after construction of telemetric solution classification, for example as upper, following works have be done:
• Creation of the necessary register of telematic solutions,
• Preparation of the questionnaires adjusted to particular types of subject – as concise as possible, but allowing to obtain sufficient data,
• Preparation of the platform for filed in questionnaires registration,
• Preparation of the software for automatic search in Internet.
The data collection system should be constructed also with consciousness that it will be possibly adopted to use in transport telematic systems development monitoring and transport user needs recognition. BIBLIOGRAPHY
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Kornel B. WYDRO
University College of Business and Technology in Warsaw