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Data Collection Practices for Use with In-Service Performance Evaluations (2024) / Chapter Skim
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4 Pilot Test
Pages 8-11

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From page 8...
...  Other topics as requested by the pilot testers. The research team provided the pilot states with the draft ISPE Data Collection Procedures Manual the day after the kick-off meeting, on April 04, 2023.
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From page 9...
... , to review the ISPE Data Collection Procedures Manual and determine the level of effort and data sources required to collect the data elements defined in the Manual. InTrans has a thorough knowledge of the IowaDOT crash database and many of Iowa's roadway asset databases.
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From page 10...
... State State State Data Element Nomenclature A B C Safety Feature Under Evaluation SFUE 1 1 3 Crash Record Number CRN 1 1 1 Crash Date CRASH_DATE 1 1 1 Crash Location CRASH_LOC 1 1 1 Number of Units TOTAL_UNITS 1 1 1 Maximum Crash Severity MAX_SEV 1 1 1 Vehicle Type VEH_TYPE 1 1 1 Posted Speed Limit SPEED_LIMIT 1 1 1 Harmful Event Post Impact with Safety Feature Under Evaluation PostHE 1 1 1 Most Harmful Event Crash with the Safety Feature Under Evaluation MHE 1 1 1 First Harmful Event Crash with the Safety Feature Under Evaluation FHE 1 1 1 Any Harmful Event Crash with the Safety Feature Under Evaluation AHE 1 1 1 First and Only Harmful Event Crash with the Safety Feature Under Evaluation FOHE 1 1 1 Roadway Surface Condition RSUR 1 1 1 Safety Feature Breach BREACH 4 5 5 Predictable Breakaway BREAK 4 5 5 Controlled Penetration, Redirection, or Stop PRS 4 5 5 Safety Feature Penetration into Occupant Compartment PEN 4 5 5 Initial Contact Point ICP 5 5 3 Sub Feature Name NAME 3 5 5 Safety Feature Offset OFFSET 2 3 5 Safety Feature Height HEIGHT 3 3 0 Curbing CURB 2 3 3 Curb Type CTYPE 2 3 6 Curb to Safety Feature Distance CDIST 3 3 5 Tapered Edge EDGE_TAP 2 3 0 Ground Condition GRNDCOND 1 3 6 10
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From page 11...
... State State State Data Element Nomenclature A B C Initial Contact Point with Safety Feature Under Evaluation IP_SFUE 5 0 5 Impact Speed ISPEED 5 0 0 Velocity Angle VANGLE 5 0 6 Heading Angle HANGLE 3 0 6 Yaw YAW 3 0 5 Safety Feature ID SFID 1 1 5 Safety Feature Location Beginning and End SFLOC_B & SFLOC_E 1 5 5 Installation Inspected and Documented INSTALL 3 3 6 Maintenance Inspection MAINT 1 3 5 Installation Date I_DATE 0 3 6 Installation Cost I_COST 2 5 6 Repair History R_HIS 5 3 6 Repair Type R_TYPE 0 5 6 Repair Cost R_COST 0 5 6 11
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Key Terms

  • ispe data
  • collection procedures
  • procedures manual
  • data elements
  • pilot states

  • pilot test
  • data element
  • harmful event
  • event crash
  • crash data

  • elements categorized
  • training materials
  • state state
  • nchrp research
  • asset inventory

  • research report
  • initial contact
  • prior experience
  • state data
  • identified data

  • data source
  • reducing data
  • investigative data
  • linking data
  • source data

  • limit data
  • data fields
  • unique data
  • ispe related
  • draft ispe


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