HomeMy WebLinkAbout20113158.tiff STATE OF COLORADO
DEPARTMENT OF TRANSPORTATION
HQ Safety and Traffic Engineering Branch - r OT
4201 E.Arkansas Avenue,3'd Floor
Denver,Colorado 80222 --- , —
303.757.9654(Voice)
303.757.9219(Fax) - otnametrif 6t ra.hs.o+r.nw
October 31, 2011
TO: City/County Transportation Officials
FROM: Bryan K. Allery
Acting Branch Manager
RE: Federal Hazard Elimination Program
Applications for Federal Hazard Elimination Project Funds for FY 2013-2015 are being
requested at this time. Applications are due in by January 31', 2012. Completed applications
are to be sent to your local CDOT Region Traffic Engineer who will review the applications and
then forward to this office for analysis:
Colorado Department of Transportation Region Traffic Engineers
Bernie Guevara - Region 1 Traffic Engineer Sasan Delshad - Region 2 Traffic Engineer
18500 E. Colfax Ave. 905 Erie Ave.
Aurora, CO 80011 Pueblo, CO 81002
Zane Znamenacek - Region 3 Traffic Engineer Ina Zisman - Region 4 Traffic Engineer
222 South 6th St., #317 1420 2nd Street
Grand Jct., CO 81501-2769 Greeley, CO 80632
Mike McVaugh - Region 5 Traffic Engineer Steve Hersey - Region 6 Traffic Engineer
3803 N. Main Ave., #306 2000 South Holly St.
Durango, CO 81301 Denver, CO 80222
Ref: FY2013-2015 Federal Hazard Elimination Program
(A Map of the CDOT Regions is also Included with the Application Form for Reference)
Any project selected for this federal funding must be included in, or added to, the Statewide
Transportation Improvement Program (STIP) and, if in an urban area, in the appropriate
Transportation Improvement Program (TIP) of the respective Metropolitan Planning
Organization (MPO). Local governments within an MPO are advised to send a copy of their
applications to their respective Organization; for example: City of Denver to DRCOG, City of
Colorado Springs to PPACG, City of Ft Collins to North Front Range Transportation and Air
Quality Planning Council.
This program is administered by CDOT for which there may be an indirect cost or overhead
charge of approximately 1%. This indirect cost is not eligible for federal funding.
Please complete the enclosed application form for each project of interest and submit with any
supporting documents desired. The attached procedure descriptions are for your reference only
and need not be considered or included with your application. All requests will be for the
construction fiscal years of 2013 - 2015. Funding is contingent on the continuation of this
Federal Safety program. The application process, final analysis, and notification of approval or
denial are expected to be completed by the end of March 2012. Your participation in this
program is greatly appreciated.
UYYY(Y\V:YU QS,JI On S PC Pk) 2011-3158
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FEDERAL HAZARD ELIMINATION PROGRAM
This program provides federal funds (90% Federal, 10% State/Local) for projects that improve
the safety of high accident locations. The 10% Local Funds are required for projects located off
the State Highway System. The major factors in evaluating applications are the accident history
and the cost-benefit.
Eligible projects are safety projects on your jurisdiction's street or highway system, as well as
any other public road. Projects with costs for right-of-way, because of the possible long lead
time required for its acquisition, are not encouraged, but allowed.
As in the past, projects should cost no less than $50,000. Only projects of$50,000 and over will
be funded because the overhead is about the same for any size project and the cost
effectiveness of the federal dollar diminishes below this amount. Smaller projects can be
combined to meet this $50,000 threshold.
The prioritization will only consider candidate projects that have a potential for accident
reduction. The approved method of evaluation is based on determining the level of safety
through the appropriate Safety Performance Function, or the observed cumulative Binomial
Probability (BP) of an accident type or related accident characteristics. An observed accident
frequency above the expected, statewide average or a cumulative Binomial Probability of 90%
or greater suggests the presence of an accident pattern and a susceptibility to correction.
CDOT will calculate the level of safety and/or cumulative BP, and Benefit Cost Ratio (B/C) in
accordance with the attached procedures. Candidate projects that have a potential for accident
reduction will then be prioritized using the B/C as we have done in the past.
If there is a safety improvement desired on a state highway, please coordinate with your local
CDOT Traffic Engineer about CDOT applying for the funds or making a joint application.
Questions regarding the application process and evaluation criteria can be directed to:
Bryan K. Allery - CDOT Staff Traffic, 303.757.9967
Ron Nelson — CDOT Staff Traffic, 303.512.5101
Shane Chevalier— CDOT Staff Traffic, 303.512.5109
David Swenka — CDOT Staff Traffic, 303.512.5103
Distribution: City/County Transportation Officials
CDOT Region Traffic Engineers
Attachment: Application Form and sample Procedures for Calculating the Level of Safety, BP,
and B/C Ratio
Electronic Versions of the forms are available at:
http://www.coloradodot.info/I i brarv/traffic/traffic-manuals-qu idel ines/fed-hazard-el i m-rail road-cross-proq
Federal Hazard Elimination Program Application ' OT
Requesting Agency:
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Hazardous Location (Road Number, Street, Milepost, etc.):
Documented Accident History (3-year span, up to 5 yrs., attach documentation. If not available,
CDOT can assist with accident history):
Traffic Volume Counts (All directions/approaches):
Description/Illustration of Existing Hazard (Photos Recommended):
Description/Illustration of Proposed Improvement and the Extent to Which it Addresses the
Accident Problem:
Proposed Cost Estimate (Actual Costs in Excess of Estimate will be the Responsibility of the
Agency placing the Request):
Fiscal Year ❑ 2013 ❑ 2014 ❑ 2015
Note:Utilizing consecutive fiscal years would indicate that the project requests consideration until funding is granted or funding has
been exhausted.
Submitted By:
E-Mail:
Title:
Phone:
Date:
CDOT Region Map and Traffic Engineers
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Colorado Department of Transportation Region Traffic Engineers
Bernie Guevara - Region 1 Traffic Engineer Sasan Delshad - Region 2 Traffic Engineer
18500 E. Colfax Ave. 905 Erie Ave.
Aurora, CO 80011 Pueblo, CO 81002
Zane Znamenacek- Region 3 Traffic Engineer Ina Zisman - Region 4 Traffic Engineer
222 South 6th St., #317 1420 2nd Street
Grand Jct., CO 81501-2769 Greeley, CO 80632
Mike McVaugh - Region 5 Traffic Engineer Steve Hersey- Region 6 Traffic Engineer
3803 N. Main Ave., #306 2000 South Holly St.
Durango, CO 81301 Denver, CO 80222
Ref: FY2013-2015 Federal Hazard Elimination Program
Procedure for Calculating the Level of Safety
(For reference only— CDOT will complete the calculations)
The Level of Safety of a potential Hazard Elimination project is determined from the accident
history at the project location, the exposure or traffic volume and the Safety Performance
Function (SPF) model that best matches the project's characteristics. This evaluation is
performed for roadway segments and intersections. For example, on a roadway segment:
A county is applying for funding assistance for a project extending over 1.48 miles on a rural, 2-
lane highway segment on generally flat terrain. Their application includes the following: 18
property damage only (PDO) accidents, 1 injury (INJ) accident and 1 fatal (FAT) accident
reported over a 5 year period along the project segment. The county estimates the average
traffic volume to be 5,200 vehicles per day (vpd) on the facility.
CDOT's evaluation typically determines: Accidents per Mile per Year (APMPY) = (20 accidents
total)/(1.48 mi * 5 yrs) = 2.7 APMPY at 5,200 vpd. This project location qualifies initially
because the observed accident frequency exceeds the expected mean or average for the
roadway type, as shown on the SPF model below.
Another potential project location on a similar highway may exhibit the following traffic data:
10 PDO, 2 INJ and 0 FAT accidents over a 5 year period and a 2 mile long project length where
the traffic volume is 6,500 vpd. This project does not qualify since the observed accident
frequency (1.2 APMPY) at a traffic volume of 6,500 vpd falls below the expected mean accident
frequency boundary as shown below.
/t'wrizi Rural Flat and Rolling 2-Lane Highways
' --'-' - (1993-2002)Total Graphs-Sections-s 2.0 Miles
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f Non-Qualifying Project
°dv Qualifying Project Level of Safety(LOSS)II
A S Level of Safety(LOSS)III
f - - 1055111
n - Expected Mean
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0 1000 2000 3000.,,...r 000 5000 6000 1000 8.000 9000 10 MO 11 000 12000 UO00 14 000
MDT
Evaluation of an intersection location is similar, however, a segment length is not involved and
the traffic volumes for both minor and major road approaches are required in the analysis.
SPF models for highway segments can be viewed at:
http://www.coloradodot.i nfo/library/traffic/traffic-manuals-guidelines/safety-crash-data/safety-a nalysis-
information
Procedure for Calculating the Cumulative Binomial Probability
(For reference only— CDOT will complete the calculations)
For a spot location (intersection, etc.) or Segment of Roadway:
Compute the cumulative Binomial Probability (BP) of an accident type or related accident
characteristics using the formula below:
Nai-1
Nti!
Cum BP = P(1 — Pi)N"-i
(Nti — Ohi!
i=0
Where:
Cum BP = Binomial Probability in Percent
Nai = Number of Accidents of that Type or Related Characteristic Observed at the
Location
Nti = Total Number of Accidents at the Location
P = Statewide Average Percent of Specific Accident Type or Related Characteristic for
the Type of Facility
An observed cumulative Binomial Probability of 90% or greater suggests a presence of an
accident pattern and a susceptibility to correction.
t
Procedure for Calculating the Benefit Cost Ratio
(For reference only— CDOT will complete the calculations)
The benefit/cost ratio (B/C) is the annual expected benefit divided by the estimated annual
average project cost. The B/C formula used is:
B Expected Benefit Equivalent Uniform Annual Benefits
C Estimated Cost Equivalent Uniform Annaul Costs
B = [(PD0)(a) + (INJ)(b) + (FAT)(c)j(ARF)
Where: PDO is the Number of Property Damage Only Accidents
INJ is the Number of Injury Producing Accidents
FAT is the Number of Fatality Producing Accidents
a is cost per PDO accident ($8,200)
b is cost per INJ accident ($68,100)
c is cost per FAT accident ($1,290,000)
ARF is the Accident Reduction Factor for the type of proposed improvement(s)
and: C = (PCE)(CRF) +AMC
PCE is the Project Cost Estimate
CRF is the Capital Recovery Factor
AMC is the Annual Maintenance Cost
The following sources provide the information required to prepare the benefit/cost ratios:
1. The Federal Hazard Elimination Program Application submitted by the requesting agency
identifies the location by street names or by milepoints, describes the existing hazard and
proposed improvement, and provides a project cost estimate.
2. Documented accident history is verified and/or provided by CDOT Safety and Traffic
Engineering Branch. A minimum accident history of two years is required (three to five years
is preferred). Property damage only, injury, and fatal accidents are then expressed as the
number of accidents per year.
3. Accident costs are based on nationally established figures.
4. Accident Reduction Factors (or forecasts) are based on the specific type of improvement
proposed and are compiled from the National Cooperative Highway Research Program
(NCHRP) Report 162.
5. The Project Cost Estimate is obtained from the application submitted by the requesting
agency (after being evaluated and approved by the CDOT Region offices). This amount
should include estimates for materials, construction, mobilization, engineering, and
contingency costs.
6. Capital Recovery Factors (CRF) are based on the estimated service life of the type of
improvement proposed and an assumed rate of return (interest rate). A table of Capital
Recovery Factors is also available in NCHRP Report 162.
7. Annual Maintenance Costs are included in the analysis only when they are expected to be
greater than the maintenance costs incurred if no improvements were made. The specific
costs can be obtained from CDOT Staff Maintenance.
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