Table 62 summarizes the estimated improvement costs by type and Table 63 summarizes the benefits (dollars) resulting from the implementation of the proposed safety countermeasures.
Table 61 : NW 14th Street Corridor – Final Cost - Benefit Ratio Benefits Costs
Final Benefit / Cost Ratio
$66,020,000
$1,373,000
48.08
Table 62 : Cost Results for NW 14th Street Corridor
Annual Maintenance Cost
Service Life
Construction Cost
Improvement Type
Cost (Each)
Quantity
Install dynamic speed feedback signage Install/refresh high -visibility crosswalks Install advance signal, stop or yield signs
$3,000.00
2
10
$6,000.00
$600.00
$16.00
1530
4
$24,480.00
$6,120.00
$100.00
4
6
$400.00
$60.00
Install Stop Bar
$30.00
15
4
$450.00
$112.50
Install median pedestrian refuge
$4,100.00
4
25
$16,400.00
-
Curb extension
$10,000.00
10
25
$100,000.00
-
Reconfigure ramps to meet ADA Standard Install additional lighting Install continuous sidewalks
$3,500.00
30
25
$105,000.00
-
$5,331.30
6
15 10
$31,987.80 $305,468.13
$1,699.39 $30,546.81
$134.86
2265
Total $590,185.93 $39,138.70 Lifecycle Cost (20 years) $1,373,000
Table 62 : Benefit Results for NW 14th Street Corridor Crash Severity
# of Crashes Prevented
Prevention Benefit
Total Benefit
K - Fatal
$3,700,000 $3,700,000 $520,000
0
$0
A – Severe Injury
17
$62,900,000
B – Non- Incapacitating or Suspected Minor Injury
6
$3,120,000
Total Benefit:
$66,020,000
62
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