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MÁV Co. Transport Safety Project (KözOP) Video Track Inspection System (VPR) Installed Vehicle Diagnostic equipment. Tamás Both commissioned head of department 7th February 2013. Elements of the present track inspection system. Inspection on foot inspection on foot by patrolmen
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MÁV Co. Transport Safety Project(KözOP)Video Track Inspection System (VPR)Installed Vehicle Diagnostic equipment Tamás Both commissioned head of department 7th February 2013
Elements of the present track inspection system • Inspection on foot • inspection on foot by patrolmen • Inspection on foot by track-master, chief track-master, section engineer • Examinations and measurement in turnouts • Line inspection on railway vehicles • Inspection of engineering structures (bridges, culverts, tunnels, etc.) • Track geometrical measurements • Ultrasonic rail inspection • Clearance gauge measurements and examinations
Main features of video track inspection system(VPR) • Able to execute the examinations without disturbing the traffic till the speed of 120 km/h with self-propelled diesel vehicle • Measurement by non-contact method, with laser optic principle, on the base of video records • Able to take clear pictures by digital high-speed and low-noise cameras • Minimum examination width counted from the track axis 1,75-1,75 m • Its two main functions: recording the structural elements of the railway track and panoramic record • Able to examine and automatically evaluate 40 - 45 measuring parameters • Able to supply local fault list • Makes a statistical list for a chosen measuring length
Aim of VPR • Decreasing of the risk of transport safety and work safety • Updating of track inspection activity, track inspection system and procedures, • Increasing the objectivity of track inspection examinations, • Accurate and traceable documentation of the track state and its change, • Accurate identification of the structural elements of te railway track,
Advantages of VPR • State of the art technology • Decreases the subjectivity of track inspection • Suitable for objective qualification of the structural state • Early recognition of rail faults with cracks (Head Check) • Suitable for objective examination of high-speed lines • Live-labour and cost-efficient solution • Risks of traffic safety and work safety decrease • Enables the accurate documentation of track state and its change, the more efficient designing of elimination of faults and disturbances • Ensures the classification of local faults, and supplies the fault list depending on the speed and size-limit category
Realisation of VPR VPR Recording Cars and measuring systems 1.) Vehicle_1 VPR-1 1.) Vehicle_2 VPR-2 1.) Vehicle_3 VPR-3
Realisation of VPR • Incorporation 3 pcs VPR recording cars into system • Within the frames of KÖZOP supporting contract: • Procurement of 3 pcs VPR vehicles • Procurement of 3 pcs VPR measuring systems • Tender calling for public procurement of negotiation • Testing, training of the structural elements of MÁV Co’s lines • Further development of VPR measuring system and evaluation software • Modification of track inspection regulation (D5), approval by the authority • Incorporation VPR into system
Characteristics of VPR measuring system • 3 pcs VPR measuring systems • Contact free examination • Its external measuring boxes (beams) are located inside the railway clearance gauge. • It can examine and supply measuring data at least at 120 km/h speed range • Each record is synchronised with the railway chainage • Applies the MÁV database • Recording the structural elements of the railway track • Panoramic record • Determination of the faults of the structural elements • Office evaluating and processing system
Characteristics of VPR vehicle • 3 db diesel railcars transformed according to the requirements of VPR recording car • serves as accommodation for VPR measuring system and staff • Ensures connecting points for mounting the VPR measuring system • With two engine driver’s cabins • 120 km/h allowed and measuring speed • Ensures the accommodation of 6 persons • Air-conditioned • Measuring room, sleeping compartments, dining room, lavatory, technical rooms • Supplying the electric energy necessary for the operation of VPR measuring system
Installed vehicle dynamic equipment • Hazard point • Sensor • Hot bearing (vehicles with hot box) • Hot bearing signal • Jammed, stickked brakes (braked wheels) • Flat wheel • Dynamic wheel load meter and wheel flat detector • Overloaded vehicles • Moved consignment, uneven consignment distribution • Broken axles, body-springs • Over-reaching the loading gauge • Loading gauge checker • Wheels under tolerances • Wheel flange checker • Faulty pantograph • Pantograph detector • Contact pressure (between pantograph and contact wire)
Accident occurred due to hot bearing in Italy • June 29th 2009 23:48 Viareggio (IT): • 32 victims, 267 seriously injured people • Due to the breaking of an axle pivot the first 7 wagons of the freight train consists of 14 wagons derailed, from these 5 overturned, one tank ripped, gas (butane) spread, then blowup. • Victims emerged from the population, rescue teams found 7 victims under the collapsed houses.
Hot-bearing detectors operating on MÁV Co’s network Kisvárda Szerencs Nyírbogdány Rajka Hegyeshalom Szob Füzesabony Hatvan Győr Tatabánya Püspökladány Szajol Cegléd Székesfehérvár Szombathely P.szabolcs Mezőtúr Kunszentmiklós Rétszilas Zalaegerszeg
Necessity and aim of dynamic wheel-load measurement • Development of such a diagnostic equipment which registers and filters out the running of vehicles dangerous from transport safety aspect. • Operation of the system enhances the safety of railway transport, • Decreases significantly the maintenance costs of the railway network and accident damage restoration costs originating from the technical state of the vehicles, or improper loading. • Gives information concerning the actual mass of the coach and train-set which is a relevant element of the statement of network access fee (track access fee).
