Analysis of Road Analysis of Road Traffic Accidents on Traffic Accidents on NH 45 (Kanchipuram NH 45 (Kanchipuram District) District) Ravishankar Rajaraman Ravishankar Rajaraman Dr. Ahamedali M. Hassan Dr. Ahamedali M. Hassan Jeya Padmanaban Jeya Padmanaban JP Research India Pvt. Ltd. JP Research India Pvt. Ltd. A wholly owned subsidiary of JP Research, Inc. A wholly owned subsidiary of JP Research, Inc.
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Analysis of Road Traffic Accidents on NH 45 (Kanchipuram District)
Analysis of Road Traffic Accidents on NH 45 (Kanchipuram District). Ravishankar Rajaraman Dr. Ahamedali M. Hassan Jeya Padmanaban JP Research India Pvt. Ltd. A wholly owned subsidiary of JP Research, Inc. Introduction. Real-time crash investigation - PowerPoint PPT Presentation
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Analysis of Road Traffic Analysis of Road Traffic Accidents on NH 45 Accidents on NH 45
(Kanchipuram District)(Kanchipuram District)
Ravishankar RajaramanRavishankar Rajaraman
Dr. Ahamedali M. HassanDr. Ahamedali M. Hassan
Jeya PadmanabanJeya Padmanaban
JP Research India Pvt. Ltd.JP Research India Pvt. Ltd.A wholly owned subsidiary of JP Research, Inc.A wholly owned subsidiary of JP Research, Inc.
JP Research India Pvt. Ltd.
• Real-time crash investigationReal-time crash investigation• 75 km stretch of NH 45 (Otteri to Acharapakam)75 km stretch of NH 45 (Otteri to Acharapakam)• 45 days - 145 days - 1stst September to 15 September to 15thth October 2008 October 2008• Intimation support from Kanchipuram District PoliceIntimation support from Kanchipuram District Police
• Objectives:Objectives:– Develop a framework and methodologyDevelop a framework and methodology– Study accidents on NH 45Study accidents on NH 45
Proprietary information, such as names/addresses of accident victims and vehicle Proprietary information, such as names/addresses of accident victims and vehicle registration numbers, was NOT included in the research.registration numbers, was NOT included in the research.
• Safety System UseSafety System Use– Seatbelt useSeatbelt use
– Pre-tensioner firingPre-tensioner firing
– Airbag deploymentAirbag deploymentSeatbelt stretch marks
Airbag deployment Seatbelt loose Seatbelt tight
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Injury Coding and CorrelationInjury Coding and Correlation
• Obtain Medical Records of injured personsObtain Medical Records of injured persons
• Abbreviated Injury Score (AISAbbreviated Injury Score (AIS))– Developed by the Association for the Advancement of Automotive Developed by the Association for the Advancement of Automotive
Medicine (AAAM)Medicine (AAAM)
– 7 digit code7 digit code
11 Body RegionBody Region
2 2 Type of Anatomical StructureType of Anatomical Structure
3/4 3/4 Specific Anatomical StructureSpecific Anatomical Structure
5/6 5/6 LevelLevel
77 Severity ScoreSeverity Score
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• Correlation (Biomechanics) – an exampleCorrelation (Biomechanics) – an exampleMr. Co-passenger suffers head laceration in accident. Says he was belted.Mr. Co-passenger suffers head laceration in accident. Says he was belted.
Injury report:Injury report: Head Laceration Head Laceration
• Life threatening when vehicle is Life threatening when vehicle is stopped abruptlystopped abruptly
• Need for “forgiving” designNeed for “forgiving” design
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Pedestrian Impact and RolloversPedestrian Impact and Rollovers
Pedestrian ImpactsPedestrian Impacts• 4 of the 5 cases involved high 4 of the 5 cases involved high
speeds in excess of 50 kmph.speeds in excess of 50 kmph.
• Absence of pedestrian warning Absence of pedestrian warning signals or pedestrian crossings.signals or pedestrian crossings.
• Commercial vehicles on duty Commercial vehicles on duty (taxis/ on hire)(taxis/ on hire)
• 3 accidents in broad daylight3 accidents in broad daylight
RolloversRollovers• Only 2 cases, no injuriesOnly 2 cases, no injuries
• Night time, wet roadsNight time, wet roads
• Poor tyre tread-depthsPoor tyre tread-depths
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ConclusionsConclusions
• Methodology worksMethodology works
• In-depth accident data collection with police support is very In-depth accident data collection with police support is very much possiblemuch possible
• Data capture with readily available toolsData capture with readily available tools
• Not financially prohibitiveNot financially prohibitive
• Framework can be extended to all IndiaFramework can be extended to all India
• Front-Rear Collisions (59%) biggest contributor to NH 45 Front-Rear Collisions (59%) biggest contributor to NH 45 accidentsaccidents
• Reason: Pre-accident condition of leading vehicleReason: Pre-accident condition of leading vehicle– Slowing down, stopping, breaking down or overtakingSlowing down, stopping, breaking down or overtaking
JP Research India Pvt. Ltd.
Future work!Future work!
• More in-depth data studies are required to understand the More in-depth data studies are required to understand the
causes of heavy truck accidents on highways.causes of heavy truck accidents on highways. – Analysis of Heavy Truck Accidents on NH45 and the Urgent Need for Analysis of Heavy Truck Accidents on NH45 and the Urgent Need for
In-depth Truck Accident Data Collection on National Highways.In-depth Truck Accident Data Collection on National Highways.
JP Research India Pvt. Ltd.JP Research India Pvt. Ltd.
• Networking with accident hospitals is essential to obtain injury Networking with accident hospitals is essential to obtain injury data for coding injuries and for detailed injury analysis.data for coding injuries and for detailed injury analysis.– Coimbatore Project (Aug – Oct 2009)Coimbatore Project (Aug – Oct 2009)
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Significance of In-depth DataSignificance of In-depth Data
• Understanding location specific problems/weaknessesUnderstanding location specific problems/weaknesses
• Implementing safety systems/strategies (vehicle/highway/road Implementing safety systems/strategies (vehicle/highway/road user) based on real-world researchuser) based on real-world research
• Increasing public awareness about traffic safety issues through Increasing public awareness about traffic safety issues through convincing evidence and examplesconvincing evidence and examples
• Anticipating injury trends by EMS and doctors to prepare and Anticipating injury trends by EMS and doctors to prepare and treat patients accordinglytreat patients accordingly
• Concrete evidence based decision makingConcrete evidence based decision making
• Auditing and realizing Better Returns on InvestmentAuditing and realizing Better Returns on Investment