2016年-世界发展银行全球_Federative_Republic_of_Brazil_iRAP_Pilot_Technical_Report___Federal_Highways_58页_1mb

Federative Republic of Brazil - iRAP Pilot Technical Report Summary

Core Content

This document presents the findings of the iRAP (International Road Assessment Programme) pilot study conducted on federal highways in Brazil, assessing road safety and proposing interventions to reduce fatalities and serious injuries.

Key Information

• Report Title: iRAP Pilot Technical Report - Federal Highways
• Date: November 2015
• Region: Brazil (7 states and Federal District)
• Total Road Length Assessed: 3,395 km
• Annual Vehicle Kilometers Traveled: 8.8 billion
• Annual Fatalities and Serious Injuries: 6,072
• Cost of Annual Trauma: $3.8 billion reales
• Total Investment Proposed: R$1.71 billion (US$0.55 billion)
• Potential Annual Reduction in Deaths and Injuries: 2,815
• Overall Reduction in Deaths and Injuries: 46%
• Benefit Cost Ratio (BCR): 7.6:1
• Cost per Death and Serious Injury Prevented: R$30,425 (US$9,736)

Main Findings

Star Ratings Overview

The iRAP Star Ratings provide a simple, objective measure of road safety. The results are as follows:

Road Safety Challenges

• Single Carriageway Roads: Most roads assessed were single carriageway with limited physical separation between opposing flows.
• Roadside Hazards: Over 50% of the survey length had hazardous objects within 5m of the running lane.
• Lack of Protection: Limited roadside safety barriers and insufficient footpath and crossing facilities.
• Unprotected Barrier Ends: Identified as a major hazard in almost 750 instances.
• Vulnerable Road Users: Pedestrian and bicyclist facilities were generally inadequate.

Proposed Key Treatments

The following treatments were identified as key to improving road safety:

• Roadside Safety Barriers (Passenger Side): 660.4 km (R$465 million)
• Shoulder Rumble Strips: 1,396.8 km (R$116 million)
• Footpath Provision (Passenger Side): 234.8 km (R$200 million)
• Clear Roadside Hazards (Passenger Side): 769.3 km
• Street Lighting (Mid-Block): 100.9 km
• Refuge Islands: 837 sites
• Signalised Crossings: 167 sites
• Pedestrian Fencing: 34.6 km
• Bicycle Lanes (Off-Road): 133 km
• Traffic Calming Measures: 162.2 km
• Improve Curve Delineation: 63.8 km
• Delineation and Signing (Intersection): 387 sites
• Additional Lane (2+1 Road with Barrier): 37.1 km
• Central Median Barrier (No Duplication): 74.6 km
• Footpath Provision (Driver Side): 117.8 km and 69.1 km
• Skid Resistance (Paved Road): 88.2 km
• Improve Delineation: 136 km

Safer Roads Investment Plan (SRIP)

• Objective: Maximize prevention of deaths and serious injuries within the available budget.
• Focus Areas:
  • Reducing the likelihood of run-off road crashes through improved shoulders, rumble strips, and safer roadside environments.
  • Enhancing facilities for pedestrians and bicyclists.

Economic Impact

• Investment Over 20 Years: R$1.71 billion
• Estimated Lives Saved Over 20 Years: 56,300
• Benefit Cost Ratio (BCR): 7.6:1
• Economic Cost Savings: R$13.01 billion (US$4.16 billion)

Implementation Steps

1. Local Examination: Workshop involving stakeholders to review proposed countermeasures.
2. Detailed Analysis: Traffic and crash data analysis.
3. Preliminary Studies: Site surveys and design.
4. Detailed Design and Costing: Star ratings, safety audits, and procurement.
5. Final Evaluation and Construction: Post-construction safety audits and Star Ratings.
6. Post-Construction Monitoring: Crash data analysis and performance review.

Recommendations

• Prioritise Safety: Focus on interventions that offer the greatest safety benefit per unit cost.
• Adopt Safe System Approach: A holistic strategy that considers safe roads, safe vehicles, and safe road users.
• Engage Communities: Involve local stakeholders in the planning and implementation of road safety measures.
• Review Data Collection: Improve the quality and consistency of data to support better decision-making.
• Set Policy Targets: Define clear, achievable road safety targets aligned with the Safe System Approach.
• Institutionalise iRAP Methodology: Integrate the methodology into the DNIT's operations to ensure long-term improvements.
• Training and Support: Develop a national BrasilRAP programme with training and support for local engineers and planners.

Conclusion

The iRAP pilot study in Brazil highlights the urgent need for improved road safety infrastructure and the potential for significant reductions in road trauma through targeted investments. The proposed treatments offer a cost-effective and comprehensive approach to enhancing road safety for all users. The use of Star Ratings provides an objective and measurable way to assess and improve road safety, supporting policy and investment decisions at the national level.

Acknowledgments

The project was supported by the World Bank Global Road Safety Facility, Bloomberg Philanthropies, and the FIA Foundation. Key personnel from DNIT and Labtrans, Universidade Federal de Santa Catarina, contributed to the success of the study.

Further Information

• iRAP Methodology Documents: Available at http://irap.org
• iRAP Online Software: Accessible at http://vida.irap.org
• Road Safety Toolkit: http://toolkit.irap.org
• Contact: Morgan Fletcher (morgan.fletcher@irap.org) for further details on accessing the software or additional support.