AASHTO HSM ERTA-2016 Highway Safety Manual (First Edition).pdf

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1、 HSM-1-E3-L ERRATA March 2016 Dear Customer: Recently, we were made aware of some technical revisions that need to be applied to the Highway Safety Manual, 1st Edition, and the Highway Safety Manual Supplement. Changes are reflected by color-coded highlights on individual pages throughout errata fil

2、e. 2010 changes are highlighted in blue, 2012 changes are highlighted in red, and 2016 changes are highlighted in green. Please scroll down to see the full erratum. In the event that you need to download this erratum file again, please download from: http:/downloads.transportation.org/HSM-1-M-Errata

3、.pdf. In order to see color-coding on a hard copy printout, please select “Document and Markups” in the Print dialog box when selecting your print options so that highlighting will be displayed properly. Then, please replace the existing pages with the corrected pages to ensure that your edition is

4、both accurate and current. AASHTO staff sincerely apologizes for any inconvenience. Errata to the Highway Safety Manual, 1stEdition and Supplement 2010 errata changes in blue 2012 errata changes in red 2016 errata changes in green (bold)HSM-1-E3 ii March 2016 Page Existing Text Corrected Text Vol. 1

5、 2-12 In Section 2.5, first paragraph, there is a duplicate partial second sentence Paragraph should read: “This section considers major road design elements, related driver tasks, and human errors associated with common crash Types. It is not intended to be a comprehensive summary, but is intended

6、to provide examples to help identify opportunities where an understanding of the influence of human factors can be applied to improve design.” 2-17 In Slow-Moving or Stopped Vehicles Ahead Section change opening of first sentence: “For the controlled-access mainline,” Sentence should read: “As for t

7、he controlled-access mainline,” 3-17The term e(0.4865) is used in Equation 3-4. Change the term to e(0.312). 3-21 Answer to Example 1: “Using Equation 3-7, expected crashes . . .” Change to “Using Equation 3-3 and a calibration factor = 1.0, expected crashes . . .” 3-21 Answer to Example 2: Using Eq

8、uation 3.8 . . .” Change the answer to “Using Equation 3.7 . . .” 3-33 2nd to last equation on page began with Year 4 = (5 + 7 11 + 9) / (0.87 + 0.71 + 0.64 + 1) = 32 / 3.22 = 9.94 estimate of crashes for the last year: Change to the following: Year 4 = (5 + 7 + 11 + 9) / (0.87 + 0.71 + 0.64 + 1) =

9、32 / 3.22 = 9.94 estimate of crashes for the last year: 4-9 In Table 4-2, third column, Rows 11 and 12: “Expected average crash frequency at the site” Please change text to: “Expected average crash frequency per year at the site” 4-17 The Coefficient of Variation for Segment B1 is shown as 7.710.535

10、.7BCV The denominator should be 5.2: 7.710.535.2BCV 4-35 In the table showing Ranking Based on RSI, the Average RSI Cost for Intersection 6 is $48,900. The Average RSI cost for Intersection 6 should be $42,800. 4-42 The calculation of crash frequency variance shown in the table in Step 3 indicates t

11、he variance for Signal is 10.5 and the variance for TWSC is 18.8. The variance for Signal should be 13.75, and the variance for TWSC should be 10.5. 4-46 In Table 4-10, the heading for the last column is “Average 3-Year Expected” Change this heading to “Average 3-Year Predicted . . .” Errata to the

12、Highway Safety Manual, 1stEdition and Supplement 2010 errata changes in blue 2012 errata changes in red 2016 errata changes in green (bold)HSM-1-E3 iii March 2016 Page Existing Text Corrected Text 4-46 Eq. 4-16 is incorrect. Replace Eq. 4-16 with the following:2predictedkN 4-47 In Table 4-11, all “N

13、” should be changed Make the following change to the equations in the table: “Npredicted” 4-47 In Table 4-11, Eq. III: Please make the following change to the equation: (1.5()predicted observed predictedNN N 4-55 In the Alpha and Beta calculations table: s2 = 0.034, = 0.91, = 3.2 Make the following

14、change in the equation: s2 = 0.037, = 0.80, =2.84 4-57 In the Ranking Based on Probability table: Wrong values for probability of specific crashes for signalized intersections were provided Corrected values and ranking based on formulas provided 4-60 In Eq. 4-26, the last item under “where” is Npred

15、icted,1(FI). Change this item to Npredicted,n(FI). 7-7 In Section 7.4.3.4, item 1-a-ii is shown as (P/F,i,y) = (1 + i)(y). Change this item to (P/F,i,y) = (1 + i)(y). 7-14 Table 12 is referenced in the last paragraph. Change the reference to Table 7-5. 7-17 Equation 7-10: () () ()expected PDO expect

16、ed total expected FINNNMake the following change in the equation: () () ()expected PDO expected total expected FINNN7-17 In Step 4, Eq. 7-13 is shown as: AM(total) = AM(PDO) AM(FI). Change Eq. 7-13 to: AM(total) = AM(PDO) + AM(FI). 7-18 Following Eq. 7-14, at the end of second line of the where list

17、, the (P/F,i,y) is calculated as (1 + i) y. Change this calculation to (1 + i)(y). 7-19 In Table 7-10, Columns 2 and 4 need to be revised, as does the heading for Column 2. Substitute Table 7-10 with the attached revised table. 7-19 The first line under Results states, “The estimated present value m

18、onetary benefit of installing a roundabout at Intersection 2 is $33,437,850.” Change the amount to $5,675,500. Errata to the Highway Safety Manual, 1stEdition and Supplement 2010 errata changes in blue 2012 errata changes in red 2016 errata changes in green (bold)HSM-1-E3 iv March 2016 Page Existing

19、 Text Corrected Text 9-8 Step 2 of Figure 9-2 states, “Calculate the predicted crash frequency for each site summed over the entire before period.” Change “predicted” to “expected.” 9-21 Eq. A-10 is referenced in the last column in the table under Step 6. Change the reference to Eq. 9A.1-11. 9-36 In

20、 Equation 9A.1-5: “ORi = Odd Ration at site i” Make the following text change: “ORi = Odd Ratio at site i” 9-41 Eq. 9A.2-16 is shown as Safety Effectiveness = 100 (1 R). Change this equation to Safety Effectiveness = 100 (1 OR). Vol. 2C-14 After Figure C-3, a heading was inadvertently omitted. Add t

21、he heading “C.6.3 Safety Performance Functions (SPFs)” immediately following Figure C-3.C-14The term e(0.4865) is used in Eq. C-4. Change the term to e(0.312). C-15 C.6.3 Crash Modification Factors (CMFs) Renumber the heading as “C.6.4 Crash Modification Factors (CMFs).” C-18 C.6.4 Calibration of Sa

22、fety PerformanceFunctions to Local ConditionsRenumber the heading as “C.6.5 Calibration of Safety Performance Functions to Local Conditions.” C-18 C.6.5 Weighting Using the Empirical BayesMethodRenumber the heading as “C.6.6 Weighting Using the Empirical Bayes Method.” 10-17 In Table 10-3 Note: “Acc

23、identExhibit 10-4.” Remove the note 10-23 The 3rd row about (CMF3r) in Table 10-7 references Table 10-7. Change this reference to Equation 10-13. 10-23 The 6th row about (CMF6r) in Table 10-7 references Table 10-11. Change this reference to Equation 10-17. 10-25 The calculation 0.98 + 6.875 is used

24、in an equation within the last row in Table 10-9. Change the calculation to 0.98 6.875. Errata to the Highway Safety Manual, 1stEdition and Supplement 2010 errata changes in blue 2012 errata changes in red 2016 errata changes in green (bold)HSM-1-E3 v March 2016 Page Existing Text Corrected Text 10-

25、26 In the last paragraph, first sentence: “Table 9, Figure 8, and Table 10” Make the following text change: “Tables 10-9 and 10-10, and Figure 10-8” 10-42 A 1,2000-ft horizontal curve radius is used in the 5th bullet under the heading “The Facts”. Change the horizontal curve radius to 1,200 ft. 11-1

26、0 The second sentence of Step 12 reads, “Otherwise, proceed to Step 14.” Change “Step 14” to “Step 13.” 11-11 In the first definition: “rural two-lane, tw o-way road facility” Make the following text change: “rural multi-lane highway” 11-16 In the first paragraph, first sentence: “in Table 11-3” Mak

27、e the following change: “in Table 11-4” 11-18 In the second paragraph, second sentence: “The SPFs for undivided roadway” Make the following text change: “The SPFs for divided roadway” 11-19 In the first paragraph, first sentence: “The default proportions in Table 11-5” Make the following Table numbe

28、r change: “The default proportions in Table 11-6” 11-31 Paragraph 1, line 7 refers to Table 13-9. Change this reference to Table 13-13. 11-33 Eq. 11-18 is shown as 10.0161.0(0.98 0.16 )iskewCMFskewChange the denominator as follows: 10.0161.0(0.98 0.016 )iskewCMFskew11-33 Eq. 11-19 is shown a10.0171.

29、0(0.52 0.17 )iskewCMFskewChange the denominator as follows: 10.0171.0(0.52 0.017 )iskewCMFskew11-34 Eq. 11-20 is shown as 10.0531.0(1.43 0.53 )iskewCMFskewChange the denominator as follows: 10.0531.0(1.43 0.053 )iskewCMFskewErrata to the Highway Safety Manual, 1stEdition and Supplement 2010 errata c

30、hanges in blue 2012 errata changes in red 2016 errata changes in green (bold)HSM-1-E3 vi March 2016 Page Existing Text Corrected Text 11-34 Eq. 11-21 is shown as 10.0481.0(0.72 0.48 )iskewCMFskewChange the denominator as follows: 10.0481.0(0.72 0.048 )iskewCMFskew11-35 In the CMF4iLighting section:

31、“This CMF applies to total intersections crashes (not including vehicle-pedestrian and vehicle-bicycle collisions). Make the following text change: “This CMF applies to total intersection crashes.” 11-50 Step 10, Intersection Skew Angle calculates CMF1ias follows: 110.0161.0(0.98 0.16 )0.016 301.0 1

32、.08(0.98 0.16 30)iiskewCMFskewCMFChange this calculation to: 110.0161.0(0.98 0.016 )0.016 301.0 1.08(0.98 0.016 30)iiskewCMFskewCMF11-50 The final calculation in Step 10 is: CMFcomb= 1.08 0.56 0.90 = 0.54. Change this calculation to CMFcomb= 1.33 0.56 0.90 = 0.67. 11-50 Step 11, Calculation of Predi

33、cted Average Crash Frequency, indicates the results are = 0.928 1.50 (0.54) = 0.752 crashes/year. Change these results to = 0.928 1.50 (0.67) = 0.933 crashes/year. 11-52 Column 2 of the table for Worksheet SP3B lists CMF for Intersection Skew Angle for the Total Crash Severity Level in Row 1 as 1.08

34、 and the Fatal and Injury Crash Severity Level in Row 2 as 1.09. Change the CMF for Intersection Skew Angle for the Total Crash Severity Level to 1.33 and the Fatal and Injury Crash Severity Level to 1.50. 11-52 Column 6 of the table for Worksheet SP3B lists Combined CMF for the Total Crash Severity

35、 Level in Row 1 as 0.54 and the Fatal and Injury Crash Severity Level in Row 2 as 0.44. Change the Combined CMF in Column 6 to 0.67 for the Total Crash Severity Level in Row 1 and to 0.61 for the Fatal and Injury Crash Severity Level in Row 2. 11-52 Column 5 of the Worksheet SP3C show the values for

36、 Combined CMFs are 0.54 for Total Crash Severity Level in Row 1, 0.44 for Fatal and Injury Crash Severity Level in Row 2, and 0.44 for Fatal and Injury Crash Severity Level in Row 3. Change these values to 0.67, 0.61, and 0.61, respectively. Errata to the Highway Safety Manual, 1stEdition and Supple

37、ment 2010 errata changes in blue 2012 errata changes in red 2016 errata changes in green (bold)HSM-1-E3 vii March 2016 Page Existing Text Corrected Text 11-52 Column 7 of the Worksheet SP3C show the values for Predicted Crash Frequency are 0.752 for Total Crash Severity Level in Row 1, 0.286 for Fat

38、al and Injury Crash Severity Level in Row 2, 0.178 for Fatal and Injury Crash Severity Level in Row 3, and 0.466 for Property Damage Only in Row 4. Change these values to 0.933, 0.396, 0.247, and 0.537, respectively. 11-53 The values in Columns 3, 5, 7, and 9 in the table for Worksheet SP3D are inco

39、rrect. Substitute the table for Worksheet SP3D with the attached revised table. 11-53 In the table for Worksheet SP3E, the values for Predicted Average Crash Frequency listed in Column 2 are 0.752, 0.286, 0.178, 0.466 crashes/year. Change these values to 0.933, 0.396, 0.247, and 0.537, respectively.

40、 11-55 The values in Columns 2, 3, 4, 7, and 8 for Intersections shown in Worksheet SP4A are incorrect. Substitute the table for Worksheet SP4A with the attached revised table. 11-55 The final calculation for Intersection 1 is shown as: 10.7431 0.460 (0.752)w Change this calculation to 10.7001 0.460

41、 (0.933)w 11-56 Under the subheading Column 8Expected Average Crash Frequency, the calculation for Intersection 1 is shown as follows: Nexpected = 0.743 0.752 + (1 0.743) 3 = 1.330. Change this calculation to Nexpected= 0.700 0.933 + (1 0.700) 3 = 1.554. 11-56 The values and the reference to Workshe

42、et 3A in the table for Worksheet SP4B are incorrect. Substitute the table for Worksheet SP4B with the attached revised table. 11-58 The headings and values shown in the tables for Worksheet SP5A and SP5A Continued are incorrect. Substitute the tables for Worksheet SP5A and SP5A Continued with the at

43、tached revised table. 11-58 In Worksheet SP5A: there are subhead errors in columns 1-7 Revert back to original editions subhead values Errata to the Highway Safety Manual, 1stEdition and Supplement 2010 errata changes in blue 2012 errata changes in red 2016 errata changes in green (bold)HSM-1-E3 vii

44、i March 2016 Page Existing Text Corrected Text 11-59 The calculation for w0 in Column 9 is shown as 11.96814.3470.688Change the calculation to 12.10914.5280.68211-59 The calculation for N0in Column 10 is shown as = 0.688 4.347 + (1 0.688) 9 = 5.799. Change the calculation to 0.682 4.528 + (1 0.682)

45、9 = 5.950. 11-59 The calculation for w1in Column 11 is shown as 12.00914.3470.684Change this calculation to 12.07614.5280.68611-59 The calculation for N1in Column 12 is shown as = 0.684 4.347 + (1 0.684) 9 = 5.817. Change this calculation to = 0.686 4.528 + (1 0.686) 9 = 5.932. 11-59 The calculation

46、 for Nexpected/comb in Column 13 is shown as: 5.799 5.81725.808Change this calculation to: 5.950 5.93225.94111-60 The values shown in the table for Worksheet SP5B are incorrect. Substitute the table for Worksheet SP5B with the attached revised table. 11-61 The first sentence in the section on Result

47、s reads, “The predicted average crash frequency for the proposed four-lane facility project is 4.4 crashes per year, and the predicted crash reduction for the project is 8.1 crashes per year.” Change the numbers to 4.5 crashes per year for the predicted average crash frequency and 7.8 crashes per ye

48、ar for the predicted crash reduction. 11-61 The values in Table 11-26 are incorrect. Substitute Table 11-26 with the attached revised table. 12-10 In the 12thbullet: “For all intersections”Remove the bullet Errata to the Highway Safety Manual, 1stEdition and Supplement 2010 errata changes in blue 20

49、12 errata changes in red 2016 errata changes in green (bold)HSM-1-E3 ix March 2016 Page Existing Text Corrected Text 12-10 In the 16thbullet: “Number of major-road approaches with left-turn signal phasing (0, 1, or 2) (signalized intersections only) and type of left-turn signal phasing (permissive, protected/permissive, permissive/