roadway safety improvement (rsi) road safety audits & audit reviews cliff reuer traffic &...

ROADWAY SAFETY IMPROVEMENTROADWAY SAFETY IMPROVEMENT(RSI)(RSI)

ROAD SAFETY AUDITS & AUDIT ROAD SAFETY AUDITS & AUDIT REVIEWSREVIEWS

CLIFF REUER CLIFF REUER TRAFFIC & SAFETY ENGINEERTRAFFIC & SAFETY ENGINEER

SDDOTSDDOTOFFICE OF PROJECT OFFICE OF PROJECT

DEVELOPMENTDEVELOPMENT605-773-5361605-773-5361

Roadway Safety Improvement Roadway Safety Improvement (RSI)(RSI)

90% Federal funds.90% Federal funds.

Locations with above average number of Locations with above average number of accidents.accidents.

Accident records search – 5 accidents in 3 Accident records search – 5 accidents in 3 year period.year period.

Locations submitted by Regions, Class 1 Locations submitted by Regions, Class 1 Cities, & Highway Patrol.Cities, & Highway Patrol.

Conducting RSI InspectionConducting RSI Inspection

Look for accident pattern.Look for accident pattern.

Analyze collision diagram.Analyze collision diagram.

Calculate accident rate > 2.0.Calculate accident rate > 2.0.

Benefit Cost > 1.00.Benefit Cost > 1.00.

On site inspection by RSI Team.On site inspection by RSI Team.

Program in STIP.Program in STIP.

Accident in South Dakota 2004 - 2006Accident in South Dakota 2004 - 2006

Class 1 Cities with 5 + crashes @ Inter. Class 1 Cities with 5 + crashes @ Inter. 2004-20062004-2006

Class 1 Cities with 5 + crashes @ Inter. Class 1 Cities with 5 + crashes @ Inter. 2004-20062004-2006

City of Pierre Inter 2004 - 2006City of Pierre Inter 2004 - 2006

City of Rapid City Inter. 2004 - 2006City of Rapid City Inter. 2004 - 2006

I-190/West Blvd & SD44/OmahaI-190/West Blvd & SD44/Omaha

I-190/West Blvd & SD44/Omaha – p.1I-190/West Blvd & SD44/Omaha – p.1

I-190/West Blvd & SD44/Omaha – p.2I-190/West Blvd & SD44/Omaha – p.2

I-190/West Blvd & SD44/OmahaI-190/West Blvd & SD44/Omaha

City of Pierre Mid Block 2004 - 2006City of Pierre Mid Block 2004 - 2006

City of Pierre Mid Block 2004 - 2006City of Pierre Mid Block 2004 - 2006

Rural Crashes State SystemRural Crashes State System

Rural Crashes State System Rural Crashes State System

Crash SummaryCrash Summary (Rural I-90 E. of S. Falls)(Rural I-90 E. of S. Falls)

Crash Summary Crash Summary (I-90 E. of S. Falls - p2 )(I-90 E. of S. Falls - p2 )

Crash Details (Crash Details (Rural I-90 E. of S. Falls)Rural I-90 E. of S. Falls)

P 1 of 3

Rural Off State System 2004 - 2006Rural Off State System 2004 - 2006

Animal Crashes Rural – State & LocalAnimal Crashes Rural – State & Local(2005)(2005)

Green = Wild Purple = Domestic Total = 5011

Rural Animal Hits Near Sioux Falls Rural Animal Hits Near Sioux Falls

Road Safety Audit (RSA)Road Safety Audit (RSA)

A Road Safety Audit is an examination of A Road Safety Audit is an examination of a future roadway project, by an a future roadway project, by an independent audit team, focusing solely on independent audit team, focusing solely on safety.safety.

Road Safety Audit Review (RSAR)Road Safety Audit Review (RSAR)

A Road Safety Audit Review is an A Road Safety Audit Review is an examination of an existing roadway, by an examination of an existing roadway, by an independent audit team, focusing solely on independent audit team, focusing solely on safety issues.safety issues.

RSA & RSAR are RSA & RSAR are proactiveproactive while historical while historical safety programs are safety programs are reactivereactive..

Conducting the Audit/ReviewConducting the Audit/Review

Is a Formal Process.Is a Formal Process.Tailored to your issues.Tailored to your issues.Both processes use an independent Both processes use an independent audit team approach.audit team approach.Team should consist of Traffic/Safety, Team should consist of Traffic/Safety, Design, Construction & Maintenance Design, Construction & Maintenance expertise, SDLTAP……expertise, SDLTAP……If on Local Roads – Local entity should If on Local Roads – Local entity should be representedbe represented

Conducting the Audit/Review (2)Conducting the Audit/Review (2)

Audit Audit can includecan include on site review. on site review.

Audit ReviewAudit Review is is an on site review. an on site review.

Audit results in a report to the designer.Audit results in a report to the designer.

Audit Review report to the owner.Audit Review report to the owner.

Use of Crash DataUse of Crash Data

The RSA & RSAR use crash data as The RSA & RSAR use crash data as background information.background information.Funding through the federal program still Funding through the federal program still tied to crashes.tied to crashes.South Dakota has funding in State South Dakota has funding in State Transportation Improvement Program Transportation Improvement Program (STIP) to address RSAR findings.(STIP) to address RSAR findings.

Audit of Proposed ProjectAudit of Proposed Project

Conduct when designer has plans 50 - Conduct when designer has plans 50 - 75% complete or before plans review 75% complete or before plans review process.process.

Designer reviews and presents plans to Designer reviews and presents plans to audit team.audit team.

Audit ConsiderationsAudit Considerations

Design standards used.Design standards used.Need for acceleration & deceleration Need for acceleration & deceleration lanes.lanes.Review turning templates.Review turning templates.Parking removal.Parking removal.Access management.Access management.Sight restrictionsSight restrictions

Audit Review of Existing RoadsAudit Review of Existing Roads

Used to identify safety deficiencies of Used to identify safety deficiencies of existing roads.existing roads.

Are safety needs of road users being met?Are safety needs of road users being met?

Has the use of the roadway changed over Has the use of the roadway changed over time.time.

Have standards changed. Have standards changed.

May be performed on a newly opened May be performed on a newly opened road.road.

Audit Review Considerations Audit Review Considerations

Steep in slopes.Steep in slopes.

Edge drop off.Edge drop off.

Sight distance restrictions.Sight distance restrictions.

Need for safety pipe ends.Need for safety pipe ends.

Obstacles in clear zone/right of way.Obstacles in clear zone/right of way.

Surface defectsSurface defects

Signing and striping deficienciesSigning and striping deficiencies

Audit Review FindingsAudit Review Findings

Divided into three categoriesDivided into three categories– Immediate safety improvements that should Immediate safety improvements that should

be made – Vegetation, Delineation in clear be made – Vegetation, Delineation in clear zone, signing.zone, signing.

– Low cost improvements that could have a Low cost improvements that could have a positive impact on safety – Signing, Clear the positive impact on safety – Signing, Clear the clear zone.clear zone.

– High cost improvements that should be High cost improvements that should be considered when funds are available for a considered when funds are available for a major rehabilitation – Construction, Re-major rehabilitation – Construction, Re-construction.construction.

Liability ConcernsLiability Concerns

Can we be sued?Can we be sued?List of needs protected by List of needs protected by Sec 409.Sec 409.Best not to ignore safety Best not to ignore safety related items.related items.Defense - Creates plan to Defense - Creates plan to be completed as funds be completed as funds become available.become available.

SummarySummary

RSA & RSAR can be applied to all roads.RSA & RSAR can be applied to all roads.Can be proactive – don’t have to wait for Can be proactive – don’t have to wait for accidents.accidents.Can identify design changes & low cost Can identify design changes & low cost fixes.fixes.Can be used as a punch list for short term Can be used as a punch list for short term fixes and in planning long term needs.fixes and in planning long term needs.Liability should not be a concern.Liability should not be a concern.

QUESTIONS ??QUESTIONS ??