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In-Service Performance Evaluation: Guidelines for the Assembly and Analysis of Data (2022)

Chapter: Appendix A - Example ISPE Summary of Data and Results Sheets for Each Evaluation Measure

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Suggested Citation:"Appendix A - Example ISPE Summary of Data and Results Sheets for Each Evaluation Measure." National Academies of Sciences, Engineering, and Medicine. 2022. In-Service Performance Evaluation: Guidelines for the Assembly and Analysis of Data. Washington, DC: The National Academies Press. doi: 10.17226/26751.
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Suggested Citation:"Appendix A - Example ISPE Summary of Data and Results Sheets for Each Evaluation Measure." National Academies of Sciences, Engineering, and Medicine. 2022. In-Service Performance Evaluation: Guidelines for the Assembly and Analysis of Data. Washington, DC: The National Academies Press. doi: 10.17226/26751.
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Suggested Citation:"Appendix A - Example ISPE Summary of Data and Results Sheets for Each Evaluation Measure." National Academies of Sciences, Engineering, and Medicine. 2022. In-Service Performance Evaluation: Guidelines for the Assembly and Analysis of Data. Washington, DC: The National Academies Press. doi: 10.17226/26751.
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Suggested Citation:"Appendix A - Example ISPE Summary of Data and Results Sheets for Each Evaluation Measure." National Academies of Sciences, Engineering, and Medicine. 2022. In-Service Performance Evaluation: Guidelines for the Assembly and Analysis of Data. Washington, DC: The National Academies Press. doi: 10.17226/26751.
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Suggested Citation:"Appendix A - Example ISPE Summary of Data and Results Sheets for Each Evaluation Measure." National Academies of Sciences, Engineering, and Medicine. 2022. In-Service Performance Evaluation: Guidelines for the Assembly and Analysis of Data. Washington, DC: The National Academies Press. doi: 10.17226/26751.
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Suggested Citation:"Appendix A - Example ISPE Summary of Data and Results Sheets for Each Evaluation Measure." National Academies of Sciences, Engineering, and Medicine. 2022. In-Service Performance Evaluation: Guidelines for the Assembly and Analysis of Data. Washington, DC: The National Academies Press. doi: 10.17226/26751.
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Suggested Citation:"Appendix A - Example ISPE Summary of Data and Results Sheets for Each Evaluation Measure." National Academies of Sciences, Engineering, and Medicine. 2022. In-Service Performance Evaluation: Guidelines for the Assembly and Analysis of Data. Washington, DC: The National Academies Press. doi: 10.17226/26751.
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Suggested Citation:"Appendix A - Example ISPE Summary of Data and Results Sheets for Each Evaluation Measure." National Academies of Sciences, Engineering, and Medicine. 2022. In-Service Performance Evaluation: Guidelines for the Assembly and Analysis of Data. Washington, DC: The National Academies Press. doi: 10.17226/26751.
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Suggested Citation:"Appendix A - Example ISPE Summary of Data and Results Sheets for Each Evaluation Measure." National Academies of Sciences, Engineering, and Medicine. 2022. In-Service Performance Evaluation: Guidelines for the Assembly and Analysis of Data. Washington, DC: The National Academies Press. doi: 10.17226/26751.
×
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Suggested Citation:"Appendix A - Example ISPE Summary of Data and Results Sheets for Each Evaluation Measure." National Academies of Sciences, Engineering, and Medicine. 2022. In-Service Performance Evaluation: Guidelines for the Assembly and Analysis of Data. Washington, DC: The National Academies Press. doi: 10.17226/26751.
×
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Suggested Citation:"Appendix A - Example ISPE Summary of Data and Results Sheets for Each Evaluation Measure." National Academies of Sciences, Engineering, and Medicine. 2022. In-Service Performance Evaluation: Guidelines for the Assembly and Analysis of Data. Washington, DC: The National Academies Press. doi: 10.17226/26751.
×
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Suggested Citation:"Appendix A - Example ISPE Summary of Data and Results Sheets for Each Evaluation Measure." National Academies of Sciences, Engineering, and Medicine. 2022. In-Service Performance Evaluation: Guidelines for the Assembly and Analysis of Data. Washington, DC: The National Academies Press. doi: 10.17226/26751.
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56 A P P E N D I X A Example ISPE Summary of Data and Results Sheets for Each Evaluation Measure

ISPE Project ID: Totals Dist Totals Dist Totals Dist Test Level: TL4 TL4 %0019663%00%00 CI z Value: 1.44 0 0% 3669 100% 0 0% %00%00%0019663 K A B C O U Totals Dist C.I. C.I. Breach 0 0 0 0 0 0 0 R1 No Breach 0 0 0 0 0 0 0 R0 R2 ES K A B C O U Totals Dist C.I. C.I. Breach 0 0 0 0 0 0 0 R1 No Breach 0 0 0 0 0 0 0 R0 R2 ES K A B C O U Totals Dist C.I. C.I. Breach 0 0 0 0 0 0 0 R1 No Breach 0 0 0 0 0 0 0 R0 R2 ES K A B C O U Totals Dist C.I. C.I. Breach 0 0 0 0 0 0 0 R1 No Breach 0 0 0 0 0 0 0 R0 R2 ES Performance Assessment Level 1 (PAL1) Distribution and Results of BREACH not limited PAL2 Distribution and Result of BREACH for limited by VEH_TYPE PAL3 Distribution and Results of BREACH limited by SPEED_LIMIT PAL4 Distribution and Results of BREACH for TOTAL limited by VEH_TYPE & SPEED_LIMIT Evaluation A (Safety Feature Breach) Not Inspected Inspected Unknown Breach No Breach Unknown Condition 32 noitidnoC1 noitidnoC

ISPE Project ID: Totals Dist Totals Dist Totals Dist Test Level: CI z Value: 1.44 K A B C O U Totals Dist C.I. C.I. No Break R1 Break R0 R2 ES K A B C O U Totals Dist C.I. C.I. No Break R1 Break R0 R2 ES K A B C O U Totals Dist C.I. C.I. No Break R1 Break R0 R2 ES K A B C O U Totals Dist C.I. C.I. No Break R1 Break R0 R2 ES PAL3 Distribution and Results of BREAK limited by SPEED_LIMIT PAL4 Distribution and Results of BREAK for TOTAL limited by VEH_TYPE & SPEED_LIMIT Break Inspected nwonknUnwonknU Performance Assessment Level 1 (PAL1) Distribution and Results of BREAK not limited PAL2 Distribution and Result of BREAK for limited by VEH_TYPE Evaluation B (Safety Feature Breakaway) 3 noitidnoC2 noitidnoC1 noitidnoC No Break Not Inspected

ISPE Project ID: Totals Dist Totals Dist Totals Dist Test Level: CI z Value: 1.44 K A B C O U Totals Dist C.I. C.I. None R1 Redirected R0 Controlled Penetration R2 Controlled Stop ES K A B C O U Totals Dist C.I. C.I. None R1 Redirected R0 Controlled Penetration R2 Controlled Stop ES K A B C O U Totals Dist C.I. C.I. None R1 Redirected R0 Controlled Penetration R2 Controlled Stop ES K A B C O U Totals Dist C.I. C.I. None R1 Redirected R0 Controlled Penetration R2 Controlled Stop ES PAL3 Distribution and Results of PRS limited by SPEED_LIMIT PAL4 Distribution and Results of PRS for TOTAL limited by VEH_TYPE & SPEED_LIMIT Controlled Pen Controlled Stop Unknown PAL2 Distribution and Result of PRS for limited by VEH_TYPE Redirected Inspected Unknown Performance Assessment Level 1 (PAL1) Distribution and Results of PRS not limited Evaluation C (Safety Feature Controlled Penetration, Redirection, Stopping) Condition 1 Condition 2 Condition 3 None Not Inspected

ISPE Project ID: Totals Dist Totals Dist Totals Dist Test Level: TL4 %0013062%00%00 CI z Value: 1.44 0 0% 2603 100% 0 0% %00%00%0013062 K A B C O U Totals Dist C.I. C.I. Penetration 0 0 0 0 0 0 0 R1 No Penetration 0 0 0 0 0 0 0 R0 R2 ES K A B C O U Totals Dist C.I. C.I. Penetration 0 0 0 0 0 0 0 R1 No Penetration 0 0 0 0 0 0 0 R0 R2 ES K A B C O U Totals Dist C.I. C.I. Penetration 0 0 0 0 0 0 0 R1 No Penetration 0 0 0 0 0 0 0 R0 R2 ES K A B C O U Totals Dist C.I. C.I. Penetration 0 0 0 0 0 0 0 R1 No Penetration 0 0 0 0 0 0 0 R0 R2 ES PAL3 Distribution and Results of PEN limited by SPEED_LIMIT PAL4 Distribution and Results of PEN for TOTAL limited by VEH_TYPE & SPEED_LIMIT No Penetration Inspected nwonknUnwonknU Performance Assessment Level 1 (PAL1) Distribution and Results of PEN not limited PAL2 Distribution and Result of PEN for limited by VEH_TYPE Evaluation D (Occupant Compartment Penetration) 3 noitidnoC2 noitidnoC1 noitidnoC Penetration Not Inspected

ISPE Project ID: Totals Dist Totals Dist Totals Dist Test Level: TL4 %0013062%00%00 CI z Value: 1.44 %00%0013062%00 %00%00%337 2485 95% 45 2% K A B C O U Totals Dist C.I. C.I. Rollover Field Side 0 0 0 0 0 0 0 0% R1 0.1370 0.0890 0.2050 Rollover Same Side 0 0 0 0 0 0 0 0% R0 0.0079 0.0055 0.0112 Rollover - Other 0 10 14 22 27 0 73 3% R2 0.0285 0.0242 0.0337 All Other PostHE 4 21 169 335 1956 0 2485 97% ES 17.4486 10.0212 30.3811 K A B C O U Totals Dist C.I. C.I. Rollover Field Side 0 0 0 0 0 0 0 0% R1 0.1493 0.0972 0.2224 Rollover Same Side 0 0 0 0 0 0 0 0% R0 0.0075 0.0052 0.0108 Rollover - Other 0 10 9 22 26 0 67 3% R2 0.0268 0.0225 0.0318 All Other PostHE 4 18 164 330 1919 0 2435 97% ES 19.9005 11.3672 34.8397 K A B C O U Totals Dist C.I. C.I. Rollover Field Side 0 0 0 0 0 0 0 0% R1 0.1111 0.0505 0.2272 Rollover Same Side 0 0 0 0 0 0 0 0% R0 0.0096 0.0051 0.0179 Rollover - Other 0 3 5 10 9 0 27 4% R2 0.0397 0.0302 0.0520 All Other PostHE 2 8 42 80 521 0 653 96% ES 11.6222 4.2225 31.9898 K A B C O U Totals Dist C.I. C.I. Rollover Field Side 0 0 0 0 0 0 0 0% R1 0.1304 0.0594 0.2626 Rollover Same Side 0 0 0 0 0 0 0 0% R0 0.0078 0.0039 0.0158 Rollover - Other 0 3 1 10 9 0 23 3% R2 0.0348 0.0259 0.0466 All Other PostHE 2 6 41 78 511 0 638 97% ES 16.6304 5.7841 47.8155 PAL 4 Distribution and Results of PostHE for TOTAL limited by VEH_TYPE & SPEED_LIMIT Rollover Same Side Inspected nwonknUrehtO - revolloR All Other PostHE Unknown Performance Assessment Level 1 (PAL1) Distribution and Results of PostHE not limited PAL2 Distribution and Result of PostHE for limited by VEH_TYPE PAL3 Distribution and Results of PostHE limited by SPEED_LIMIT Evaluation F (Rollover) Condition 1 Condition 2 Condition 3 Rollover Field Side Not Inspected

ISPE Project ID: tsiDslatoTtsiDslatoTtsiDslatoT Test Level: TL4 2766 100% 0 0% 2766 100% CI z Value: 1.44 0 0% 2766 100% 0 0% 0 0% 0 0% K A B C O U Totals Dist C.I. C.I. Passenger Car 4 17 111 227 1321 0 1680 61% R2_AHE 0.017 0.0135 0.0205 Pick-Up Truck 3 19 78 150 745 0 995 36% Single Unit Truck 0 0 3 2 14 0 19 1% Tractor Trailer 0 2 8 7 45 0 62 2% Motorcycle 0 1 8 0 0 0 9 0% Bus 0 0 1 0 0 0 1 0% Other 0 0 0 0 0 0 0 0% K A B C O U Totals Dist C.I. C.I. Passenger Car 4 17 111 227 1321 0 1680 62% R2_AHE 0.0160 0.0128 0.0198 Pick-Up Truck 3 19 78 150 745 0 995 37% Single Unit Truck 0 0 3 2 14 0 19 1% Tractor Trailer K A B C O U Totals Dist C.I. C.I. Passenger Car 0 4 29 58 353 0 444 59% R2_AHE 0.0212 0.0149 0.0302 Pick-Up Truck 2 8 20 38 206 0 274 36% Single Unit Truck 0 0 2 2 6 0 10 1% Tractor Trailer 0 2 4 4 13 0 23 3% Motorcycle 0 0 4 0 0 0 4 1% Bus 0 0 0 0 0 0 0 0% Other 0 0 0 0 0 0 0 0% K A B C O U Totals Dist C.I. C.I. Passenger Car 0 4 29 58 353 0 444 59% R2_AHE 0.0213 0.0149 0.0303 Pick-Up Truck 2 8 20 38 206 0 274 36% Single Unit Truck 0 0 2 2 6 0 10 1% Tractor Trailer 0 2 4 4 13 0 23 3% Performance Assessment Level 1 (PAL1) Distribution and Results of VEH_TYPE and AHE PAL2 Distribution and Result limited by VEH_TYPE for AHE PAL3 Distribution and Results of limited by SPEED_LIMIT for AHE PAL 4 Distribution and Results limited by VEH_TYPE & SPEED_LIMIT for AHE Unknown Veh Type Inspected Unknown Evaluation H (Vehicle Mix) for AHE Condition 1 Condition 2 Condition 3 Known Veh Type Not Inspected

K A B C O U Totals C.I. C.I. First Harmful Event 4 32 185 366 2016 0 2603 R2_FHE 0.0138 0.0109 0.0175 Most Harmful Event 2 25 166 350 2053 0 2596 R2_MHE 0.0104 0.0079 0.0137 First and Only Harmful Event 3 11 109 255 1553 0 1931 R2_FOHE 0.0073 0.0050 0.0106 K A B C O U Totals C.I. C.I. First Harmful Event 4 29 175 361 1978 0 2547 R2_FHE 0.0130 0.0101 0.0166 Most Harmful Event 2 22 158 345 2010 0 2537 R2_MHE 0.0095 0.0071 0.0127 First and Only Harmful Event 3 10 107 250 1525 0 1895 R2_FOHE 0.0069 0.0046 0.0102 K A B C O U Totals C.I. C.I. First Harmful Event 2 12 49 93 544 0 700 R2_FHE 0.0200 0.0137 0.0292 Most Harmful Event 0 10 39 84 545 0 678 R2_MHE 0.0147 0.0094 0.0230 First and Only Harmful Event 1 3 25 61 381 0 471 R2_FOHE 0.0085 0.0042 0.0171 K A B C O U Totals C.I. C.I. First Harmful Event 2 10 44 91 534 0 681 R2_FHE 0.0176 0.0117 0.0265 Most Harmful Event 0 8 36 82 532 0 658 R2_MHE 0.0122 0.0074 0.0200 First and Only Harmful Event 1 2 24 59 373 0 459 R2_FOHE 0.0065 0.0029 0.0146 PAL2 Distribution Limited by VEH_TYPE PAL3 Distribution Limited by SPEED_LIMIT PAL 4 Distribution Limited by VEH_TYPE & SPEED_LIMIT Performance Assessment Level 1 (PAL1) Evaluation H for FHE, MHE & FOHE Evaluation H (Vehicle Mix) Continued for FHE, MHE and FOHE

ISPE Project ID: Totals Dist Totals Dist Totals Dist Test Level: TL4 %0013062%00%011 CI z Value: 1.44 16 1% 2603 100% 0 0% %00%00%171 2514 97% 45 2% K A B C O U Totals Dist C.I. C.I. Fixed Object 0 1 3 0 7 0 11 0% R1 0.0227 0.0060 0.0824 Breakaway Object 0 0 1 3 12 0 16 0% R0 0.0079 0.0055 0.0112 Terrain Feature 0 0 4 4 9 0 17 0% R2 0.0172 0.0139 0.0213 All Other PostHE 4 30 175 350 1955 0 2514 98% ES 2.8949 0.6828 12.2738 K A B C O U Totals Dist C.I. C.I. Fixed Object 0 1 3 0 7 0 11 0% R1 0.0233 0.0061 0.0843 Breakaway Object 0 0 1 3 11 0 15 0% R0 0.0075 0.0052 0.0108 Terrain Feature 0 0 4 4 9 0 17 0% R2 0.0172 0.0138 0.0213 All Other PostHE 4 27 165 345 1918 0 2459 98% ES 3.1008 0.7301 13.1685 K A B C O U Totals Dist C.I. C.I. Fixed Object 0 0 2 0 4 0 6 1% R1 0.0000 0.0000 0.0827 Breakaway Object 0 0 0 0 5 0 5 0% R0 0.0096 0.0051 0.0179 Terrain Feature 0 0 2 2 8 0 12 1% R2 0.0338 0.0252 0.0453 All Other PostHE 2 11 43 88 513 0 657 97% ES K A B C O U Totals Dist C.I. C.I. Fixed Object 0 0 2 0 4 0 6 1% R1 0.0000 0.0000 0.0827 Breakaway Object 0 0 0 0 5 0 5 0% R0 0.0078 0.0039 0.0158 Terrain Feature 0 0 2 2 8 0 12 1% R2 0.0348 0.0259 0.0466 All Other PostHE 2 9 38 86 503 0 638 97% ES PAL3 Distribution and Results of PostHE limited by SPEED_LIMIT PAL4 Distribution and Results of BREAK for PostHE limited by VEH_TYPE & SPEED_LIMIT All Other PostHE Inspected Unknown Unknown Performance Assessment Level 1 (PAL1) Distribution and Results of PostHE not limited PAL2 Distribution and Result of PostHE for limited by VEH_TYPE Breakaway Object Terrain Feature Fixed Object Not Inspected Evaluation J (Secondary Impact on Roadside) Condition 1 Condition 2 Condition 3

Example ISPE Summary of Data and Results Sheets for Each Evaluation Measure 65   K A B C O U Totals Dist C.I. C.I. Impact with Vehicle 91 3% R1 0.0163 0.0099 0.0268 Impact with Peds 0 0 0 1 0 0 1 0% R0 0.0099 0.0072 0.0135 Impact with Longitudinal Barrier 1 4 41 60 293 0 399 14% 0.1667 0.1876 Impact with Terminal or Crash Cushion 0 0 0 0 0 0 0 0% 0.9454 2.8645 All Other PostHE 2284 82% K A B C O U Totals Dist C.I. C.I. Impact with Vehicle 88 3% R1 0.0146 0.0085 0.0248 Impact with Peds 0 0 0 1 0 0 1 0% R0 0.0096 0.0070 0.0132 Impact with Longitudinal Barrier 1 4 38 59 289 0 391 14% 0.1670 0.1881 Impact with Terminal or Crash Cushion 0 0 0 0 0 0 0 0% 0.8392 2.7332 All Other PostHE 2227 82% K A B C O U Totals Dist C.I. C.I. Impact with Vehicle 0 2 1 2 22 0 27 4% R1 0.0376 0.0201 0.0693 Impact with Peds 0 0 0 1 0 0 1 0% R0 0.0127 0.0074 0.0217 Impact with Longitudinal Barrier 1 2 9 11 82 0 105 14% 0.1586 0.1988 Impact with Terminal or Crash Cushion 0 0 0 0 0 0 0 0% 1.3897 6.2785 All Other PostHE 615 82% K A B C O U Totals Dist C.I. C.I. Impact with Vehicle 0 3 10 17 61 0 0 2 10 16 60 0 0 1 1 2 22 0 26 4% R1 0.0305 0.0152 0.0605 Impact with Peds 0 0 0 1 0 0 1 0% R0 0.0112 0.0063 0.0199 Impact with Longitudinal Barrier 1 2 9 11 81 0 104 14% 0.1613 0.2024 Impact with Terminal or Crash Cushion 0 0 0 0 0 0 0 0% R2 0.1769 ES 1.6456 R2 0.1773 ES 1.5145 R2 0.1778 ES 2.9538 R2 0.1809 ES 2.7176 1.1726 6.2980 All Other PostHE 6 33 159 312 1773 1 6 30 151 305 1734 1 1 11 46 82 475 0 1 9 41 80 462 0 593 82% PAL 4 Distribution and Results of PostHE for TOTAL limited by VEH_TYPE & SPEED_LIMIT Performance Assessment Level 1 (PAL1) Distribution and Results of PostHE not limited PAL2 Distribution and Result of PostHE for limited by VEH_TYPE PAL 3 Distribution and Results of PostHE limited by SPEED_LIMIT ISPE Project ID: Totals Dist Totals Dist Totals Dist Test Level: TL4 91 3% 0 0% 2820 100% CI z Value: 1.44 1 0% 2820 100% 0 0% 399 15% 0 0% 0 0% 0 0% 2284 81% 45 2% Impact with Peds Inspected All Other PostHE Unknown Unknown Impact with Longitudinal Barrier Impact with Terminal or Crash Cushion Evaluation K (Secondary Impact on Roadway) Condition 1 Condition 2 Condition 3 Impact with Vehicle Not Inspected

66 In-Service Performance Evaluation: Guidelines for the Assembly and Analysis of Data ISPE Project ID: Totals Dist Totals Dist Totals Dist Test Level: CI z Value: 1.44 K A B C O U Totals Dist C.I. C.I. All Non-Front Impact R1all Shallow Angle Impact R1sa Side Impact R1side Front Impact R0 R2all R2sa R2side ESall ESsa ESside K A B C O U Totals Dist C.I. C.I. All Non-Front Impact R1all Shallow Angle Impact R1sa Side Impact R1side Front Impact R0 R2all R2sa R2side ESall ESsa ESside K A B C O U Totals Dist C.I. C.I. All Non-Front Impact R1all Shallow Angle Impact R1sa Side Impact R1side Front Impact R0 R2all R2sa R2side ESall ESsa ESside K A B C O U Totals Dist C.I. C.I. All Non-Front Impact R1all Shallow Angle Impact R1sa Side Impact R1side Front Impact R0 R2all R2sa R2side ESall ESsa ESside Unknown Performance Assessment Level 1 (PAL1) Distribution and Results of ICP not limited PAL 2 Distribution and Result of ICP for limited by VEH_TYPE PAL 3 Distribution and Results of ICP limited by SPEED_LIMIT PAL 4 Distribution and Results of ICP for TOTAL limited by VEH_TYPE & SPEED_LIMIT Front Impact Shallow Angle Impact Inspected nwonknUtcapmI ediS Evaluation L (Impact Orientation) 3 noitidnoC2 noitidnoC1 noitidnoC All Non-Front Impact Not Inspected

ISPE Project ID: Totals Dist Totals Dist Totals Dist Test Level: TL4 Not Expected 1553 60% Not Inspected 0 0% 2601 100% CI z Value: 1.44 Expected 1033 40% 2601 100% 0 0% %00%00%151 K A B C O U Totals Dist C.I. C.I. Not Expected 2 17 106 228 1200 0 1553 60% R1 0.012 0.0088 0.0170 Expected 2 15 77 137 802 0 1033 40% R0 0.016 0.0116 0.0232 R2 0.601 0.5866 0.6143 ES 0.743 0.4613 1.1981 K A B C O U Totals Dist C.I. C.I. Not Expected 2 16 102 225 1183 0 1528 60% R1 0.012 0.0084 0.0165 Expected 2 13 72 135 783 0 1005 40% R0 0.015 0.0103 0.0215 R2 0.603 0.5892 0.6171 ES 0.789 0.4787 1.3013 K A B C O U Totals Dist C.I. C.I. Not Expected 1 5 22 56 310 0 394 57% R1 0.015 0.0085 0.0270 Expected 1 7 26 36 229 0 299 43% R0 0.027 0.0162 0.0438 R2 0.569 0.5413 0.5954 ES 0.569 0.2636 1.2290 K A B C O U Totals Dist C.I. C.I. Not Expected 1 4 20 56 306 0 387 57% R1 0.013 0.0069 0.0242 Expected 1 6 23 34 225 0 289 43% R0 0.024 0.0142 0.0410 R2 0.572 0.5449 0.5996 ES 0.533 0.2313 1.2303 Distribution and Results of ICP for TOTAL limited by VEH_TYPE & SPEED_LIMIT Unknown Distribution and Results of ICP not limited Distribution and Result of ICP for limited by VEH_TYPE Distribution and Results of ICP limited by SPEED_LIMIT Inspected Unknown Evaluation M (Impact Orientation) Condition 1 Condition 2 Condition 3

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 In-Service Performance Evaluation: Guidelines for the Assembly and Analysis of Data
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An "in-service performance evaluation" (ISPE) examines roadside safety features while roads are in service. A database of crashes is generally the minimum resource necessary for conducting an ISPE.

The TRB National Cooperative Highway Research Program's NCHRP Research Report 1010: In-Service Performance Evaluation: Guidelines for the Assembly and Analysis of Data presents uniform criteria for conducting ISPEs of both permanent and temporary safety features.

Supplemental to the report are NCHRP Web-Only Document 332: Multi-State In-Service Performance Evaluations of Roadside Safety Hardware, which documents the development of the guidelines and the entire research effort; the ISPE Data Set and Analysis Template, a spreadsheet tool to aid in the calculations of each evaluation measure shown in this report and to support the documentation of an ISPE; Implementation of Research Findings and Products, a plan that identifies mechanisms and channels for implementing this research; and a presentation that summarizes the project.

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