Transcript Slide 1
Introduction • Level Crossing Risk – Approximately 30% of rail related fatalities occur as a result of motor vehicle collisions1 – Annual estimated cost to Australian society $116,279,817 ($2010)2 – Over 23,500 level crossings, 8,838 public (67% with passive protection)3 • Rail Level Crossing Suite of Projects – R3.122 – Affordable Level Crossings – R2.121 – Low-cost RLX Risk & Legal Evaluation – R2.119 – Baseline RLX Video 1 2011 Level crossing accidents in Australia. Transport Safety Bulletin, Independent Transport Safety Regulator NSW Tooth & Balmford, RISSB Railway Level Crossing Incident Costing Model 3 2009 Level Crossing Stocktake, Railway Industry Safety and Standards Board, Australia 2 2010 R3.122 Affordable Level Crossings • National Low-cost Level Crossing Trial Programme • • • • • • Located on North Coast Line Narrow gauge, bi-directional track 25KV AC overhead power Preceding cutting and curve 60 km/h [70km/h Tilt-train] Freight & passenger traffic • • • • Located on North Coast Line Standard gauge, bi-directional track 115km/h freight [125km/h passenger] Freight & passenger traffic • Located on Geelong-Ballarat freight corridor • Broad gauge, bi-directional track • Low-frequency freight traffic Data Collection • Weather monitoring stations • Temperature, humidity, solar radiation, wind speed, wind direction • 3G mobile communications to download logs remotely • Comparative logger • PLC records state changes for all inputs with timestamp • 3G mobile communications to download logs remotely R3.121 Low-Cost Rail Level Crossing Risk & Legal Evaluation R2.119 Baseline Rail Level Crossing Video • Participants Limitations of Level Crossing Incident Analysis • Number of level crossing collisions (lagging indicators) insignificant for data analysis • Near-miss occurrences (leading indicators) – Occur with a frequency orders of magnitude greater than collisions – Reportable occurrences • However, there are issues with current paper-based reporting – Under-reporting & inconsistencies in reporting – Subjectivity – Inaccuracies in retrospective description of events Limitations of Level Crossing Incident Analysis • Pitfalls of causal analysis on sparse data1 – Over-interpretation – Tendency for analysts to identify causal factors representative of a category of failure rather than identifying characteristics that may distinguish it – Current near-miss reporting does not describe the “less visible influences” that may condition an incident 1 Johnson, C. (2003). Failure in Safety-Critical Systems: A Handbook of Incident and Accident Reporting. Glasgow, Scotland Glasgow University Press. Information Gathering and Data Analysis Platform Data Collection Infrastructure R2.119 Baseline Rail Level Crossing Video • • • • Tilt-train Forward facing video 2Tb video / fortnight / train Disk swap procedure • • • • Back-end Servers 2 sets of equipment Servers with 8 processor cores / set 100Tb storage in RAID 6 array / set Data Collection • Queensland Rail – North Coast Line ≈ 1680km – Currently 3 Tilt-trains – Additional trains later in the year 824 451 248 28 97 Level crossings Public Occupational Pedestrian Queensland Rail BRISBANE © Stuart Edwards Video Analytics Object detection - bus Localization – to be developed Distance from Rail Centreline Object detection car R2.119 Benefits for Australian Rail Industry • Inform improvements to existing paper-based reporting – Better criteria and sub-categorization consistent with statutory reporting requirements – Simulator-based training for drivers to improve objectivity of reporting • Improve understanding of the context of near-misses and causal factors that lead to incidents at railway level crossings – Inform countermeasures – Improve risk models used to prioritize upgrade funding • Enhance the understanding of the inter-relationship between human performance and other elements of the system • The Future… R2.119 Platform Verticalization • • R2.119 project focused on nearmisses at level crossings Platform can be verticalized to support several application domains Safety Data Classificati on and Analysis Application Graffiti Detection and Tracking Application Balast Condition Monitoring Application Asset Condition Monitoring Application Suicide Detection on Platforms Application Information Gathering and Data Analysis Platform (Service Oriented Architecture) Service Layer Data Services Video Analytics Service Level Crossing Image Classifiers Data Abstraction Level Crossing ImageClassifiers Classifiers Signal State Image Geographical Information System Video Repository Balast Condition Monitoring Level Crossing Image Classifiers Classifiers LevelGraffiti Crossing Image Classifiers Image Classifiers LevelSuicide Crossing Image Classifiers Image Classifiers Questions