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Roadside Inspections - Using Data to Identify Who to Inspect:
ISS and Query Central
Brenda Lantz([email protected])
August 2002
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