Spreadsheet: 0152e851-70b9-4427-b60a-8620d3ca2bc3
Sheet: Safety Benefits Calculation

TE 164 (Modified by Stantec, 5/24/13)
STATE OF NEW YORK |  |  |  |  |  |  |  |  |  |  |  |  |  | TRAFFIC & SAFETY IDENTIFICATION NUMBER
DEPARTMENT OF TRANSPORTATION
TRAFFIC AND SAFETY DIVISION |  |  |  |  |  |  |  |  |  |  |  |  |  | EVALUATION OF ALTERNATE NO:
SAFETY BENEFITS
EVALUATION FORM |  |  |  |  |  |  |  |  |  |  |  |  |  | STUDY PERIOD |  |  |  |  |  |  |  | From |  |  |  |  |  | To |  |  |  | No. of Yrs.
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2005-01-01 00:00:00 |  |  |  |  |  | 2008-03-07 00:00:00 |  |  |  |  |  | 3.16
[NAME] | Route No. or Street Name |  |  |  |  |  |  |  |  |  |  |  |  |  |  | State Highway No. |  |  |  |  |  |  | From or At [NAME]
 | [NAME] (Howell/Monroe to [NAME]) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Rt. 940T
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Howell Street Off - Ramp
 | At Intersection with        (if applicable) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | State Highway No. |  |  |  |  |  |  | To [NAME]
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | [NAME]
PROJECT DATA | PROPOSED IMPROVEMENT:
 |  | The proposed improvements include the conversion of an existing high speed Inner Loop expressway, with adjacent parallel low speed city streets, back to the original street grid using sustainable low speed street network principles.
 | Present AADT: |  |  |  | 6840 |  |  |  |  | Future AADT: |  |  |  | 6840 |  |  |  |  | Volume Correction Factor (VCF):
REDUCTION CALCULATION
 | METHOD I (From Reduction Factor Table)
 | Average Reduction Factor _____%
 |  |  | METHOD II (Engineering Analysis) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | METHOD III (For General [NAME])
 |  |  |  | a. Total Accidents: |  |  |  |  |  |  | 40 |  |  |  |  |  |  |  |  |  | a. Existing Accident Rate:
 |  |  |  | b. Accidents Reduced: |  |  |  |  |  |  | 0 |  |  |  | (but severity reduced) |  |  |  |  |  | b. Future Accident Rate:
 |  |  |  | [NAME] (b/a): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | [NAME] (a-b):
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | d. Calculated RF (c/a): |  |  |  |  |  |  |  |  |  |  | %
 | BRIEFLY EXPLAIN HOW EXPECTED REDUCTION WAS DERIVED:
 |  | By converting a high speed expressway to a low speed boulevard, the effect will be a reduction of the severity of accident types.  32.5% of the prior-years' accidents that occurred along the expressway resulted in personal injuries while the two adjacent city streets, Pitkin and Union, experienced 7% and 12% injuries, respectively.  By eliminating the  high speed expressway component, the severity of future accidents is expected to emulate those along the existing low speed city streets, estimated to be the average of the two, or 9.5%.
 | PRE-PROJECT COST PER ACCIDENT CALCULATION |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | POST-PROJECT COST PER ACCIDENT CALCULATION
 |  | TYPE |  | NO. ACC. |  |  |  | COST/ACC |  |  |  |  | ACC. COST |  |  |  |  |  | TYPE |  | NO. ACC. |  |  |  | COST/ACC |  |  |  |  | ACC. COST
 | Fatal |  |  | 0 |  |  | x |  |  |  |  | = |  |  |  |  |  | Fatal |  |  | 0 |  |  | x |  |  |  |  | =
 | Injury |  |  | 13 |  |  | x |  |  |  |  | = |  |  |  |  |  | Injury |  |  | 4 |  |  | x |  |  |  |  | =
 | PDO |  |  | 27 |  |  | x |  |  |  |  | = |  |  |  |  |  | PDO |  |  | 36 |  |  | x |  |  |  |  | =
 | Total |  |  |  |  |  |  |  |  |  |  | $ |  |  |  |  |  | Total |  |  |  |  |  |  |  |  |  |  | $
 | BEFORE COST/ACC (Tot. Acc. Cost/ Tot. Acc.) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | BEFORE COST/ACC (Tot. Acc. Cost/ Tot. Acc.)
SAFETY BENEFITS |  | A. ESTIMATED ANNUAL ACCIDENT COST WITH NO IMPROVEMENT (Pre-Project):
 |  |  | ACC/YR |  |  |  |  | X | VCF |  |  |  | X | BEFORE COST/ACCIDENT |  |  |  |  |  |  |  |  |  |  |  |  |  | =
 |  | B. ESTIMATED ANNUAL ACCIDENT COST WITH PROPOSED IMPROVEMENT (Post-Project):
 |  |  | ACC/YR |  |  |  |  | X | VCF |  |  |  | X |  | (1.00- |  | RF) | X | AVG. COST/ACC. |  |  |  |  |  |  |  |  | =
 |  |  |  |  |  |  |  |  |  |  |  |  |  | ESTIMATED ANNUAL SAFETY BENEFITS (A-B) =