“Manual EMBARQ de segurança viária para projetos de BRT e auditorias de segurança viária dos corredores BRT no Rio de Janeiro” -Luis Antonio Lindau, diretor-presidente da EMBARQ Brasil

Traffic Safety on Bus Corridors OverviewBackground: 2-year research projectMain findings regarding safety on bus and BRT corridorsDevelopment of design guidelinesRoad safety auditing: Rio s BRT corridors

Traffic Safety on Bus CorridorsCities included in the study

Main findings: Overall safety impact of a BRTMacrobús, Guadalajara

Main findings: Overall safety impact of a BRT Macrobús, Guadalajara250 5000 Before BRT During BRT construction After start of operations 4500 Citywide crashes200 4000 3500150 3000 2500100 2000 150050 1000 500 0 0

Main findings: Overall safety impact of a BRT / BuswayNot all systems have had a positive impact on safety Cristiano Machado Busway, Belo Horizonte Corridor with the highest crash frequency citywide BRTS, Delhi Initial increase in fatalities after the implementation of the bus system

Overview of the research MethodologyCrash data collection and analysisRoad safety audits and inspectionsDiscussions with safety experts from bus agenciesRoad test and review: getting feedback to improve the guidelines

Overview of the research Data analysisExample: Results from the Mexico City intersection model Vehicle collision model (NB) Pedestrian crash model (NB) Coef. Coef.Constant -1.518*** -1.857***Number of legs 0.374*** 0.252***Number of lanes per leg 0.374*** 0.341***Left turns per approach 1.705*** 1.268**Market area - 0.664***Maximum pedestrian crossing distance (m) - 0.026**Pedestrian overpass - -0.147Center-lane BRT (Metrobus Line 1) -0.029 -0.299Counterflow bus lane 0.554*** 0.389**Curbside bus lane -0.176 -0.087No. of observations 216 216Log likelihood -618.475 -518.539LR chi2 139.99 104.88Prob > chi2 0.000 0.000chibar2(01) 367.14 231.39Prob >=chibar2 0.000 0.000*** p<=0.001, ** p<=0.05, * p<=0.1, - variable not included in the model

Overview of the research Road safety inspections Detailed inspection of operating BRT corridors (here, Av. Caracas,TransMilenio) together with certified road safety auditors

Overview of the research Road safety audits Identifying safety issues in project drawings for BRT or buscorridors and suggesting improvements

Overview of the researchMain findings

Factors influencing crash frequenciesCounterflow Counterflow lanes were strongly correlated with higher crash frequencies across all our models (p<0.001)

Factors influencing crash frequencies Street width and intersection size and complexity Road width and complexity of intersections were the most important predictors of crash frequencies.Metrobus Line 1, Mexico City

Factors influencing crash frequenciesLocation of bus lanes Central median Shorter pedestrian crossings Fewer mixed traffic lanes Some 4-way intersections turned into T junctions

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3500 3000 2500Acidentes por ano 2000 Sem vítimas No injury 1500 Injury vítimas Com 1000 500 0 2008 2009 2010 Fonte: CET-Rio

 Fonte: CET-Rio, IPEA

Se as recomendações forem incorporadas: Redução da gravidade dos acidentes A cada ano serão evitados (*): 800 acidentes 200 vítimas, incluindo 10 fatalidades(*) há casos onde a simples implantação de um corredor de ônibuslevou a um aumento da incidência e gravidade de acidentes

“Manual EMBARQ de segurança viária para projetos de BRT e auditorias de segurança viária dos corredores BRT no Rio de Janeiro” -Luis Antonio Lindau, diretor-presidente da EMBARQ Brasil

by EMBARQ - The WRI Center for Sustainable Transport on Jun 20, 2012

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“Manual EMBARQ de segurança viária para projetos de BRT e auditorias de segurança viária dos corredores BRT no Rio de Janeiro” -Luis Antonio Lindau, diretor-presidente da EMBARQ Brasil Presentation Transcript