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This article discusses the background, development, and benefits of inspection systems for roadside inspections. It explores the use of data to improve accuracy, focus resources, and provides information on inspection software and systems.
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Roadside Inspections - Using Data to Identify Who to Inspect:ISS and Query Central Brenda Lantz (Brenda@ugpti.org) August 2002
Overview • Background of Inspection Systems • The Inspection Selection System • Query Central
Inspection Systems • Development • Improve data accuracy and timeliness • Help focus resources • ASPEN – inspection software • Collects inspection details, prepares report, & transmits data • ISS – Inspection Selection System • Provides inspection recommendation & carrier snapshot with census and safety data
Inspection Systems (continued) • PIQ – Past Inspection Query • Retrieves inspection reports from last 60 days • CDLIS Access – Commercial Driver License Information System Access • Retrieves driver status & conviction history • QC – Query Central • Combines the functions of ISS, PIQ, & CDLIS Access, plus more • For more information: http://infosys.fmcsa.dot.gov/
ISS - Motivation • Relationship between OOS rates, compliance ratings, and accident rates • OOS rate indicator of safety problems, but need reasonable number of inspections to calculate • 40% of carriers with zero inspections • 28% with one or two inspections • 152 carriers with more than 1,000 inspections • Conclusion: Need to better allocate resources to carriers with worst safety performance, and to better distribute inspections among carriers
ISS – Development and Testing • Development guided by a Roadside Technology TWG • Included representatives from Alabama, Colorado, Connecticut, Idaho, Kansas, Michigan, Nebraska, New Mexico, Ohio, Ontario, Virginia, Washington, D.C., and Wyoming • ISS integrated into ASPEN, and first distributed in 1995 • Results: 60 percent increase in the number of vehicles and/or drivers put OOS when the ISS recommended an inspection • ASPEN/ISS is currently in use in 47 states
ISS2 – Development and Testing • Development of SafeStat • ISS2 safety and insufficient data algorithms • Every carrier in MCMIS has an ISS2 value • First distributed in 1999 • Results illustrate just as effective as original ISS
Development of Query Central • Motivation • Carrier, vehicle, and driver information retrieval via the Internet • Single input retrieves data from multiple sources • Provides data analysis & summarization • Data is real time, & generally from the authoritative source