08 June 2011

SAE EDR Symposium: Day 2, Session 1

Bill Messerschmidt
Manager
Messerschmidt Safety Consultants

The second day of the SAE 2011 Highway Vehicle Event Data Recorder (EDR) Symposium kicks off with a morning session on international perspectives on EDRs. Speakers from Germany, Switzerland, Sweden, and Japan will be up this morning.

The session begins with Ralph-Roland Schmidt-Cotta from Continental GmbH in Germany. Herr Schmidt-Cotta is covering the historical background of EDRs. This history goes back to 1971, when mechanical tachographs were mandated in the European Economic Community. In 1973, the German Traffic Court Conference called for an Accident Data Recorder. Currently, the EU is attending to vulnerable road users (cyclists and motorcycle users) because fatalities among these road users are increasing relative to the number of overall fatalities. EDR technology may assist in these incidents. The European Parliament will be considering several bills that may require EDR technology in Europe for accident research, but the use of EDR data in civil and criminal proceedings will likely be left to the national level.

The second speaker, from the Japan Automotive Research Institute (JARI), is Nobuyki Uchida. His presentation is Human Error Analysis in Pedestrian Incidents. In Japan, pedestrian accidents account for approximately 35% of fatalities. In response to this, JARI conducted a naturalistic driving study using video recorders. Five video cameras were linked to vehicle onboard data, such as speed pulse and brake activations. Based on their research, attentional allocation and temporal obstructions were causal factors in drivers making the incorrect decision that it was safe to turn. JARI will be working to develop pedestrian sensors that can assist drivers in avoiding these crashes.

The third speaker is Tobias Aberle, from AXA Winterthur in Switzerland. AXA implemented a crash data recorder for its customers and offered a 15% discount on insurance premiums. These crash recorders are specifically designed for capturing data after an incident, and they provide overwrite protection, backup power, and record at higher resolution during the crash than during the seconds leading up to and after it. This is quite nice, since it was designed for accident investigations. I am a bit surprised that the crash recorder is a robust accelerometer and doesn't include driver inputs such as throttle position or brake pedal position.

The final speaker of the first session today is Dr. Anders Ydenius from Folksam Research in Sweden. Dr. Ydenius has analyzed crashes with EDR-equipped vehicles between 1992 and 2008, with a specific focus on road design and its interaction with driver and occupant injuries. Crashes were analyzed by speed limit, crash type, friction conditions, and fixed object (for single vehicle crashes). One of the (several) interesting conclusions was that wire guardrails and W guardrails offer significant potential for injury mitigation over concrete barriers.

This is one of the coolest aspects of this seminar: having renowned international speakers from Europe and Asia offers excellent perspective.

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