Measures shall be used to quantify the effect of the proposed major highway project on the highway system or the communities that will be affected by the project. These measures shall contribute points beyond the minimum score and will be used to place projects in relative rank order. The department shall numerically evaluate proposed major highway projects in the following 5 categories:
Benefit Cost Ratio Score = [(B/C) / (B/Cmax) ](100) (.375)
where:
B/C = the ratio of reduction in long-term travel costs to the cost of constructing and maintaining the proposed major highway project.
B/Cmax = the highest ratio of reduction in long-term travel costs to the cost of construction and maintenance for any proposed major highway project under consideration for enumeration in that year.
Note: Copies of Corridors 2020 or National Highway System maps can be obtained by writing to or calling the Division of Investment Management, Bureau of State Highway Programs, P. O. Box 7913, Room 933, Madison, WI 53707-7913, (608) 267-7715.
Traffic Flow Measure Points = [SIGMA] [ (LOS0) (W) (%HMVMT0) (2/3) ] +
[SIGMA] [ (LOS10) (W) (%HMVMT10) (1/3) ]
where:
LOS0 = the numeric value of the existing level of service on the highway segment.
LOS10 = the numeric value of level of service that is predicted to exist on the highway segment 10 years from the analysis year. The following table shows the numeric LOS values.
LOS Letter Value | LOS Numeric Value |
LOS A | 1.01 to 2.00 |
LOS B | 2.01 to 3.00 |
LOS C | 3.01 to 4.00 |
LOS D | 4.01 to 5.00 |
LOS E | 5.01 to 6.00 |
LOS F | greater than 6.01 |
W = weight applied to LOS numerical values, based on the following categories of LOS:
LOS | W |
1.00 to 4.00 | 0.00 |
4.01 to 4.50 | 0.40 |
4.51 to 5.00 | 0.55 |
5.01 to 5.50 | 0.70 |
5.51 to 6.00 | 0.85 |
greater than 6.01 | 1.00 |
%HMVMT0 = hundred million vehicle miles traveled over the highway segment for the existing year divided by the hundred million vehicle miles traveled over the affected highway system for the existing year.
%HMVMT10 = hundred million vehicle miles predicted to occur over the highway segment in the 10th year from the analysis year, divided by the hundred million vehicle miles predicted to occur over the affected highway system in the 10th year from the analysis year.
Traffic Flow Measure Score = (Traffic Flow Points/ Traffic Flow Pointsmax) (100)
where:
Traffic Flow Points = the traffic flow measure points for the proposed major highway project, as computed using procedures in sub. (2)(c).
Traffic Flow Pointsmax = the highest number of traffic flow measure points given to any proposed major highway project under consideration for enumeration in that year, as computed using procedures in sub. (2) (c).
Note: Department engineers will use the procedures outlined in the general design consideration guidelines in Chapter 11, Section 5 of the Facilities Development Manual published by the Wisconsin Department of Transportation to determine the level of highway service. Copies of the manual may be obtained by writing to or calling the Division of Investment Management, Bureau of State Highway Programs, P. O. Box 7913, Room 933, Madison, WI 53707-7913, (608) 267-7715.
Safety Measure Points = [SIGMA] [ (CR + SP) (%HMVMT) (100) ] - P
where:
CR = the crash rate points given for crash rates that are significantly above the statewide average for similar highway types. The following table shows the points given for the categorical ranges of crash rates.
Crash Rate | CR |
less than .99 standard deviations above the mean | .00 |
1.00 to 1.49 standard deviations above the mean | .50 |
1.50 to 1.99 standard deviations above the mean | .75 |
greater than 2.00 standard deviations above the mean | 1.00 |
SP = the severity proportion points given for severity proportions that are significantly above the statewide average for similar highway types. The following table shows the points given for the categorical ranges of severity proportions.
Severity Proportion | SP |
less than .99 standard deviations above the mean | .00 |
1.00 to 1.49 standard deviations above the mean | .50 |
1.50 to 1.99 standard deviations above the mean | .75 |
greater than 2.00 standard deviations above the mean | 1.00 |
%HMVMT = hundred million vehicle miles traveled over the highway segment for the existing year divided by the hundred million vehicle miles traveled over the affected highway system for the existing year.
P = 10 if the highway is currently used by pedestrians or bicycles, and will result in increased speeds on the existing facility without providing for improved bicycle and pedestrian facilities, or = 0 for those projects that are not used by bicycles and pedestrians, or will not result in increased speeds, or where improved bicycle and pedestrian facilities are planned.
Safety Measure Score = (Safety Points/ Safety Pointsmax) (100)
where:
Safety Points = the safety measure points for the proposed major highway project, as computed using procedures in par. (e).
Safety Pointsmax = the highest number of safety measure points given to any proposed major highway project under consideration for enumeration in that year, as computed using procedures in par. (e).
Note: The crash rates and severity proportions are objective measures which are based on principles found in the Highway Safety Evaluation Procedural Guide, Docket No. FHWA-TS-81-219, published by the Federal Highway Administration. A copy of the Guide can be reviewed by writing or calling the Safety and Traffic Operations Engineer at the Federal Highway Administration, 567 D'Onofrio Drive, Madison, WI 53719, (608) 829-7519.
Note: Environmental data will be collected from the environmental summary matrix provided in the draft environmental impact statement or the environmental assessment for specific impacts which apply to natural, physical, socio-economic and cultural resources.
Wis. Admin. Code Department of Transportation § Trans 210.06