Thomas R. Bane P.E.

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Roadside - Benefit Cost assessment See
credit below Thomas Bane
Thomas R. Bane P.E. 605 Suwannee
Street Mail-station 32 Tallahassee Florida
32399 [phone] thomas.bane_at_dot.state.fl.us
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Benefit / Cost Ratio
Reduction in Accident Costs
R(b/c)
Increase in Construction Maintenance Costs
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Non-Restricted Roadways
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Societal Costs/Severity Level
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GLOBAL PARAMETER VALUES 1. FATAL ACCIDENT
COST 1,000,000 2. SEVERE INJURY
ACCIDENT COST 200,000 3. MODERATE
INJURY ACCIDENT COST 12,500 4. SLIGHT
INJURY ACCIDENT COST 3,750 5. PDO
LEVEL 2 ACCIDENT COST 3,125 6.
PDO LEVEL 1 ACCIDENT COST 625
7. ENCROACHMENT RATE 0.0003000
ENCROACHMENTS/km/YR/VPD 8. 50 km/h DES SPEED
ENC ANGLE 13.0 DEG AND TRAF VOL CAP 24000
VPD/LANE 9. 60 km/h DES SPEED ENC ANGLE
12.8 DEG AND TRAF VOL CAP 23900 VPD/LANE 10.
70 km/h DES SPEED ENC ANGLE 12.4 DEG AND TRAF
VOL CAP 23700 VPD/LANE 11. 80 km/h DES SPEED
ENC ANGLE 12.0 DEG AND TRAF VOL CAP 23300
VPD/LANE 12. 90 km/h DES SPEED ENC ANGLE
11.6 DEG AND TRAF VOL CAP 22800 VPD/LANE 13.
100 km/h DES SPEED ENC ANGLE 11.1 DEG AND TRAF
VOL CAP 22000 VPD/LANE 14. 110 km/h DES SPEED
ENC ANGLE 10.7 DEG AND TRAF VOL CAP 21000
VPD/LANE 15. 120 km/h DES SPEED ENC ANGLE
10.3 DEG AND TRAF VOL CAP 20000 VPD/LANE 16.
SWATH WIDTH 3.600 m 17. RESET ALL GLOBALS TO
DEFAULT STARTUP VALUES. DO YOU WISH TO CHANGE
A PARAMETER VALUE (Y/N)?
Y
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GLOBAL PARAMETER VALUES 1. FATAL ACCIDENT
COST 2,600,000 2. SEVERE INJURY
ACCIDENT COST 505,000 3. MODERATE
INJURY ACCIDENT COST 165,000 4. SLIGHT
INJURY ACCIDENT COST 36,167 5. PDO
LEVEL 2 ACCIDENT COST 10,469 6.
PDO LEVEL 1 ACCIDENT COST 2,000
7. ENCROACHMENT RATE 0.0003000
ENCROACHMENTS/km/YR/VPD 8. 50 km/h DES SPEED
ENC ANGLE 13.0 DEG AND TRAF VOL CAP 24000
VPD/LANE 9. 60 km/h DES SPEED ENC ANGLE
12.8 DEG AND TRAF VOL CAP 23900 VPD/LANE 10.
70 km/h DES SPEED ENC ANGLE 12.4 DEG AND TRAF
VOL CAP 23700 VPD/LANE 11. 80 km/h DES SPEED
ENC ANGLE 12.0 DEG AND TRAF VOL CAP 23300
VPD/LANE 12. 90 km/h DES SPEED ENC ANGLE
11.6 DEG AND TRAF VOL CAP 22800 VPD/LANE 13.
100 km/h DES SPEED ENC ANGLE 11.1 DEG AND TRAF
VOL CAP 22000 VPD/LANE 14. 110 km/h DES SPEED
ENC ANGLE 10.7 DEG AND TRAF VOL CAP 21000
VPD/LANE 15. 120 km/h DES SPEED ENC ANGLE
10.3 DEG AND TRAF VOL CAP 20000 VPD/LANE 16.
SWATH WIDTH 3.600 m 17. RESET ALL GLOBALS TO
DEFAULT STARTUP VALUES. DO YOU WISH TO CHANGE
A PARAMETER VALUE (Y/N)?
N
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CURRENT SEVERITY INDEX versus COST
RELATIONSHIP SEVERITY INDEX COST
0.0 0 0.5
2,000 1.0 10,250
2.0 26,940 3.0
82,498 4.0 170,041
5.0 342,277 6.0
639,870 7.0 981,526
8.0 1,469,147 9.0
2,052,450 10.0
2,600,000 PRESS ENTER TO CONTINUE
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Societal Costs
981,562.00
SI7.0
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Property Damage Only
Non-Fatal Injuries
Accidents
Fatalities
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1. TITLE 2. TRAFFIC VOLUME 38,900 VPD -
TRAFFIC GROWTH RATE 0.650 PER YEAR 3.
DIVIDED HIGHWAY TOTAL LANE(S) 6 LANE
WIDTH 3.300 m 4. CURVATURE (RADIUS IN METERS)
999,999 GRADE (PERCENT) 0.0 5.
EFFECTIVE BASELINE CURVATURE GRADE USER
TOTAL TRAFFIC VPD ENC/km/YR
FACTOR FACTOR FACTOR ENC/km/YR ADJACENT
19,450 5.8350 1.00 1.00 1.00
5.8350 OPPOSING 19,450 0.0000
1.00 1.00 1.00 0.0000 6. DESIGN
SPEED 70 km/h ENC ANGLE 12.4 DEG ADT
CAP 23,700 VPD/LANE 7. OFFSET (A) 3.020 m
LENGTH (L) 0.500 m WIDTH (W) 0.500
m 8. INITIAL COLLISION FREQUENCY 0.02615
IMPACTS/YEAR ADJACENT CFTA 0.0261 CFSU
0.0018 CFCU 0.0233 CFFA 0.0011
OPPOSING CFTO 0.0000 CFSD 0.0000 CFCD
0.0000 CFFO 0.0000 9. SEVERITY INDEX SU
4.40 SD 2.00 CU 4.40 CD 1.00 FACE
2.20 ACCIDENT COST 238,935 26,940
238,935 10,250 38,051 0. PROJECT
LIFE 13 YR DISCOUNT RATE 7.000 /YR
TRAFFIC CUTOFF YR 200 CRF 0.11965 KC
8.66693 KT 8.35765 KJ 0.41496 1.
INSTALLATION COST 35,000 SALVAGE
VALUE 0 2. REPAIR COST/ACC SU
2000 SD 1000 CU 2000 CD 1000 F
1000 3. MAINTENANCE COST/YR 100 4.
PRESENT WORTH 88,590
ANNUALIZED 10,600 ACCIDENT COST
52,310 ANNUALIZED 6,259
HIGHWAY DEPT. COST 36,280
ANNUALIZED 4,341 O CHANGE OR ACCESS INPUT
ITEM NUM. OR FUNCTION KEY (SEE BELOW) PLUS ENTER.
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Actual Horizontal Offset
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Effective Offset
Actual Horizontal Offset
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1. TITLE 2. TRAFFIC VOLUME 38,900 VPD -
TRAFFIC GROWTH RATE 0.650 PER YEAR 3.
DIVIDED HIGHWAY TOTAL LANE(S) 6 LANE
WIDTH 3.300 m 4. CURVATURE (RADIUS IN METERS)
999,999 GRADE (PERCENT) 0.0 5.
EFFECTIVE BASELINE CURVATURE GRADE USER
TOTAL TRAFFIC VPD ENC/km/YR
FACTOR FACTOR FACTOR ENC/km/YR ADJACENT
19,450 5.8350 1.00 1.00 1.00
5.8350 OPPOSING 19,450 0.0000
1.00 1.00 1.00 0.0000 6. DESIGN
SPEED 70 km/h ENC ANGLE 12.4 DEG ADT
CAP 23,700 VPD/LANE 7. OFFSET (A) 3.020 m
LENGTH (L) 0.500 m WIDTH (W) 0.500
m 8. INITIAL COLLISION FREQUENCY 0.02615
IMPACTS/YEAR ADJACENT CFTA 0.0261 CFSU
0.0018 CFCU 0.0233 CFFA 0.0011
OPPOSING CFTO 0.0000 CFSD 0.0000 CFCD
0.0000 CFFO 0.0000 9. SEVERITY INDEX SU
4.40 SD 2.00 CU 4.40 CD 1.00 FACE
2.20 ACCIDENT COST 238,935 26,940
238,935 10,250 38,051 0. PROJECT
LIFE 13 YR DISCOUNT RATE 7.000 /YR
TRAFFIC CUTOFF YR 200 CRF 0.11965 KC
8.66693 KT 8.35765 KJ 0.41496 1.
INSTALLATION COST 35,000 SALVAGE
VALUE 0 2. REPAIR COST/ACC SU
2000 SD 1000 CU 2000 CD 1000 F
1000 3. MAINTENANCE COST/YR 100 4.
PRESENT WORTH 88,590
ANNUALIZED 10,600 ACCIDENT COST
52,310 ANNUALIZED 6,259
HIGHWAY DEPT. COST 36,280
ANNUALIZED 4,341 O CHANGE OR ACCESS INPUT
ITEM NUM. OR FUNCTION KEY (SEE BELOW) PLUS ENTER.
PRINT
STORE
RECALL
HELP
GLOBAL
SI v
DIR
SI DEF
GRAPH
QUIT
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1. TITLE 2. TRAFFIC VOLUME 38,900 VPD -
TRAFFIC GROWTH RATE 0.650 PER YEAR 3.
DIVIDED HIGHWAY TOTAL LANE(S) 6 LANE
WIDTH 3.300 m 4. CURVATURE (RADIUS IN METERS)
999,999 GRADE (PERCENT) 0.0 5.
EFFECTIVE BASELINE CURVATURE GRADE USER
TOTAL TRAFFIC VPD ENC/km/YR
FACTOR FACTOR FACTOR ENC/km/YR ADJACENT
19,450 5.8350 1.00 1.00 1.00
5.8350 OPPOSING 19,450 0.0000
1.00 1.00 1.00 0.0000 6. DESIGN
SPEED 70 km/h ENC ANGLE 12.4 DEG ADT
CAP 23,700 VPD/LANE 7. OFFSET (A) 3.020 m
LENGTH (L) 0.500 m WIDTH (W) 0.500
m 8. INITIAL COLLISION FREQUENCY 0.02615
IMPACTS/YEAR ADJACENT CFTA 0.0261 CFSU
0.0018 CFCU 0.0233 CFFA 0.0011
OPPOSING CFTO 0.0000 CFSD 0.0000 CFCD
0.0000 CFFO 0.0000 9. SEVERITY INDEX SU
4.40 SD 2.00 CU 4.40 CD 1.00 FACE
2.20 ACCIDENT COST 238,935 26,940
238,935 10,250 38,051 0. PROJECT
LIFE 13 YR DISCOUNT RATE 7.000 /YR
TRAFFIC CUTOFF YR 200 CRF 0.11965 KC
8.66693 KT 8.35765 KJ 0.41496 1.
INSTALLATION COST 35,000 SALVAGE
VALUE 0 2. REPAIR COST/ACC SU
2000 SD 1000 CU 2000 CD 1000 F
1000 3. MAINTENANCE COST/YR 100 4.
PRESENT WORTH 88,590
ANNUALIZED 10,600 ACCIDENT COST
52,310 ANNUALIZED 6,259
HIGHWAY DEPT. COST 36,280
ANNUALIZED 4,341 O CHANGE OR ACCESS INPUT
ITEM NUM. OR FUNCTION KEY (SEE BELOW) PLUS ENTER.
PRINT
STORE
RECALL
HELP
GLOBAL
SI v
DIR
SI DEF
GRAPH
QUIT
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1. TITLE 2. TRAFFIC VOLUME 38,900 VPD -
TRAFFIC GROWTH RATE 0.650 PER YEAR 3.
DIVIDED HIGHWAY TOTAL LANE(S) 6 LANE
WIDTH 3.300 m 4. CURVATURE (RADIUS IN METERS)
999,999 GRADE (PERCENT) 0.0 5.
EFFECTIVE BASELINE CURVATURE GRADE USER
TOTAL TRAFFIC VPD ENC/km/YR
FACTOR FACTOR FACTOR ENC/km/YR ADJACENT
19,450 5.8350 1.00 1.00 1.00
5.8350 OPPOSING 19,450 0.0000
1.00 1.00 1.00 0.0000 6. DESIGN
SPEED 70 km/h ENC ANGLE 12.4 DEG ADT
CAP 23,700 VPD/LANE 7. OFFSET (A) 3.020 m
LENGTH (L) 0.500 m WIDTH (W) 0.500
m 8. INITIAL COLLISION FREQUENCY 0.02615
IMPACTS/YEAR ADJACENT CFTA 0.0261 CFSU
0.0018 CFCU 0.0233 CFFA 0.0011
OPPOSING CFTO 0.0000 CFSD 0.0000 CFCD
0.0000 CFFO 0.0000 9. SEVERITY INDEX SU
4.40 SD 2.00 CU 4.40 CD 1.00 FACE
2.20 ACCIDENT COST 238,935 26,940
238,935 10,250 38,051 0. PROJECT
LIFE 13 YR DISCOUNT RATE 7.000 /YR
TRAFFIC CUTOFF YR 200 CRF 0.11965 KC
8.66693 KT 8.35765 KJ 0.41496 1.
INSTALLATION COST 35,000 SALVAGE
VALUE 0 2. REPAIR COST/ACC SU
2000 SD 1000 CU 2000 CD 1000 F
1000 3. MAINTENANCE COST/YR 100 4.
PRESENT WORTH 88,590
ANNUALIZED 10,600 ACCIDENT COST
52,310 ANNUALIZED 6,259
HIGHWAY DEPT. COST 36,280
ANNUALIZED 4,341 O CHANGE OR ACCESS INPUT
ITEM NUM. OR FUNCTION KEY (SEE BELOW) PLUS ENTER.
PRINT
STORE
RECALL
HELP
GLOBAL
SI v
DIR
SI DEF
GRAPH
QUIT
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Condition 1
Acc. Costs 1
Condition 2
Acc. Costs 2
Reduction in Accident Costs
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Questions ?