Study Details
Study Title: Benefit-Cost Analysis of In-Vehicle Technologies and Infrastructure Modifications as a Means to Prevent Crashes Along Curves and Shoulders
Authors: Pitale et al.
Publication Date:DEC, 2009
Abstract: The State of Minnesota has under way its Toward Zero Deaths (TZD) initiative, the goal of which is to eliminate fatal traffic crashes. This is a daunting task, and with limited financial resources, optimal strategies that provide the greatest benefit for a given cost have to be utilized if the goal of TZD is to be met. This report reviews both infrastructure and emerging in-vehicle solutions as a means to determine the optimal deployment strategy of countermeasures designed to improve highway safety. nfrastructure-based solutions are examined on two levels: 1) an analysis of a cross-section of strategies implemented throughout Minnesota, which 2) produced a before:after analysis that quantified the effectiveness of a variety of strategies utilized in Minnesota. In addition to the standard civil engineering countermeasures studied under the before:after analysis, emerging infrastructure and in-vehicle technology-based solutions were modeled in terms of effectiveness and potential deployment schedules. These cost and effectiveness models facilitated a comparison to the results of the before:after analysis, and from the comparison, optimal strategies for improving safety with limited funds and the TZD goal are presented.
Study Citation: Pitale, J.T., Shankwitz, C., Preston, H., and Barry, M."Benefit-Cost Analysis of In-Vehicle Technologies and Infrastructgure Modifications as a Means to Prevent Crashes Along Curves and Shoulders." Minnesota Department of Transportation, (2009).
Study Report: Download the Study Report Document
CMFs Associated With This Study
Category: Alignment
Countermeasure: Flatten horizontal curve
| CMF | CRF(%) | Quality | Crash Type | Crash Severity | Roadway Type | Area Type |
|---|---|---|---|---|---|---|
| 0.33 | 67 |  | All | All | Principal Arterial Other |
Category:Roadway
Countermeasure: Install edgeline rumble strips at horizontal curve
| CMF | CRF(%) | Quality | Crash Type | Crash Severity | Roadway Type | Area Type |
|---|---|---|---|---|---|---|
| 0.85 | 15 | | All | All | Principal Arterial Other |
Category:Shoulder treatments
Countermeasure: Install paved shoulder and rumble strips
| CMF | CRF(%) | Quality | Crash Type | Crash Severity | Roadway Type | Area Type |
|---|---|---|---|---|---|---|
| 0.63 | 37 | | All | All | Principal Arterial Other |
Countermeasure: Install shoulder rumble strips
| CMF | CRF(%) | Quality | Crash Type | Crash Severity | Roadway Type | Area Type |
|---|---|---|---|---|---|---|
| 0.85 | 15 | | All | All | Principal Arterial Other |
Countermeasure: Pave narrow shoulder through curve
| CMF | CRF(%) | Quality | Crash Type | Crash Severity | Roadway Type | Area Type |
|---|---|---|---|---|---|---|
| 2.04 | -104 | | All | All | Principal Arterial Other |
Countermeasure: Pave shoulder
| CMF | CRF(%) | Quality | Crash Type | Crash Severity | Roadway Type | Area Type |
|---|---|---|---|---|---|---|
| 0.86 | 14 | | All | All | Principal Arterial Other |
Countermeasure: Widen shoulder (paved) (from 2 to 4 ft)
| CMF | CRF(%) | Quality | Crash Type | Crash Severity | Roadway Type | Area Type |
|---|---|---|---|---|---|---|
| 0.89 | 11 | | All | All | Principal Arterial Other |
