Marcin Staniek

Model Based Vehicle Extraction and Tracking for Road Traffic Control

The paper presents a method for extracting and tracking vehicles in a video sequence. This scheme combines background updating and edge detection algorithms with model based object tracking. It enables a robust mapping of vehicles trajectories and reliable determination of occupancy of detection zones. The devised method is suitable for application in video sensors for road traffic control systems.

Road Pavement Condition as a Determinant of Travelling Comfort

The paper responds to the problem of road pavement condition as a key factor affecting travelling comfort of passengers moving around a dense transport network. Among the studies conducted under the Green Travelling project, transport behaviour patterns of persons travelling across the area of Silesian Voivodeship were subject to investigation, in the course of which linear accelerations of means of transport were recorded for the travels being made. Measurement data were obtained using mobile devices featuring a dedicated application, AP1, used to record travel parameters, including linear accelerations. After completing examinations, their participants were obliged to fill in a detailed questionnaire where they would describe their impressions related to the travels they had made, all for the sake of defining specific road infrastructure elements of critical condition. The recorded linear acceleration data were comparatively analysed in order to verify their conformity with the descriptions provided by those surveyed.

The context-sensitive grammar for vehicle movement description

The paper introduces a method allowing to spot image of vehicles, registered by a video camera. The objects manoeuvres on and between traffic lanes are one of the most important tusk being under consideration in this contribution. The elaborated algorithms of the vehicles movement analysis were presented in the paper. The description language, with its syntactic primitives, was introduced and implemented for the movement assignment, description and analysis.

Moulding of Travelling Behaviour Patterns Entailing the Condition of Road Infrastructure

The paper provides a discussion on a trip planner used as a tool for moulding of travelling behaviour patterns of persons moving in a dense transport network. The solution proposed entails the road infrastructure condition while planning transfer routes. Having defined the travel origin and destination points, a trip planner user receives information on the proposed travelling routes corresponding to roads of better technical condition. Thus the user is offered a choice of the route for the travel to be made with higher travelling comfort. Studies enabling the road infrastructure condition to be described were conducted under the Green Travelling project using mobile devices recording linear accelerations while travelling within the transport network area of the central part of Silesian Voivodeship.

The model of modal split organisation in wide urban areas using contemporary telematic systems

The article outlines chosen technical possibilities in the field of metropolitan transportation organization based on justified modal splits. The introduction clarifies the policy of sustainable transport and ways of determining modal splits. The article also summarizes existing obstacles linked with the organization of modal splits within the transportation network. It also outlines modern, developing telematics systems which enable the implementation of sensible traffic organization with modal splits. The article also contains a traffic organization concept for the presented modal split model. The conclusion outlines potential benefits arising from the proposed method of shaping modal splits.

Road Pavement Condition Assessment at Selected Roundabouts in the Town of Tychy

The purpose of the study is to identify technical condition of road pavement at selected roundabouts in the town of Tychy by means of the RCT tool. The solution proposed for this purpose is a component of an integrated IT system referred to as the S-mileSys platform, intended for freight transport support in urban areas using information and communication technologies (ICT). The measuring method applied in RCT is essentially based on analysis of the relationship between linear accelerations recorded while vehicles move in the given road network elements. The research elaborated in this paper covered twelve roundabouts whose pavement condition was identified in a breakdown into roundabout carriageways, entries and exits. The results obtained in measurements of traffic dynamics make it possible to estimate indicators of the road infrastructure condition assessment, and consequently also to indicate roundabouts in need of more detailed examinations or planned repairs, either local or more comprehensive.

Assessment of the Impact Exerted by Closing Road Tunnel on Traffic Conditions on the Example of the DW902 Road in Gliwice (Poland)

The article comments upon the impact exerted by closing the tunnel within the DW902 road on traffic conditions in the town of Gliwice. Both the tunnel in question and the town’s road network have been described, and detailed information on the direct vicinity of the tunnel has been provided. The impact of the tunnel closure on traffic conditions has been analysed by comparing traffic parameters and the road situation on the day when the tunnel was closed with those of the preceding day, i.e. when the tunnel was still operational and no significant road network disturbances were observed. For purposes of the analysis of the impact exerted by the tunnel closure on traffic conditions in the town of Gliwice, individual impact zones were defined, radially extending from the tunnel location. In order to achieve the goal of the study, a comprehensive array of available measuring, computational and analytical tools were used at the Office of the Traffic Control Centre of the Municipal Road Administration in Gliwice.

S-Mile Visualizer Tool as a Solution to Support Local Authorities in Smart Cities

This article addresses a concept of a data visualisation tool developed to analyse the functioning of a transport system and the elements linked with the system. Using data presentation technologies based on interactive thematic maps will enable precise analysis of how the system works, identification of issues and interdependences as well as determination of patterns observed in the travels currently made and transport services rendered. The deliverables of an international project referred to with the acronym S-mile, implemented under the ERANET Transport III programme, included a data visualisation tool named S-mile Visualizer Tool. It will allow for graphical presentation of global data of the chosen area, pertaining to the split of goods transport, road traffic conditions, technical condition of road infrastructure and distribution of transport-induced pollution. The tool may provide assistance to infrastructure administrators and local authorities.

Road Infrastructure Condition Assessment as Element of Road Traffic Safety – Concept of the RCT Solution in the S-mileSys Platform

The paper provides a discussion on the overall body of problems related to developing a mobile tool referred to as Road Condition Tool, used for the road infrastructure condition assessment based on the recorded signals of linear accelerations set out in a three-dimensional system. Such a data set is created while typical transport services are performed by a group of carriers which have deployed the solution in question. The road condition tool discussed in this article constitutes a part of the S-mileSys platform developed under the “Sustainable Logistics and Supply Chains” competition within the framework of the ERANET Transport III programme. The solution proposed in the paper is a mobile device with a module for positioning and one for recording linear accelerations, featuring software developed under the S-mile project for purposes of the road network assessment and description.

Measures for Matching Stereo Images in Road Pavement Diagnostics

The paper addresses the overall body of problems related to application of measures for matching stereo images in the measuring instruments used for assessment of road infrastructure condition. Selected stereo vision solutions applied in road pavement diagnostics have been explained. The main problem connected with the subject in question, namely the ambiguity of image matching, has been briefly described, and the matching algorithms commonly used have been characterised. The following measures of matching have been discussed: Sum of Absolute Differences (SAD), Zero Mean Sum of Squared Differences (ZSSD) as well as Covariance-Variance (CoVar). The studies conducted in the field addressed in the article concerned efficiency of stereo image matching for the aforementioned measures of matching. The relevant measurements were performed using images developed as outcomes of field surveys of the road infrastructure condition. The three-dimensional road pavement mapping thus obtained was compared with the mapping based on direct measurements using a dedicated diagnostic station.