lect11 - URBAN PUBLIC TRANSPORT MODAL CHARACTERISTICS AND...

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Nigel H.M. Wilson 1.201, Fall 2006 1 Lecture 11 URBAN PUBLIC TRANSPORT MODAL CHARACTERISTICS AND ROLES Outline 1. Range of Modes and Services 2. Modal Descriptions 3. Modal Comparisons and Performance Characteristics 4. Simple Capacity Analysis
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Nigel H.M. Wilson 1.201, Fall 2006 2 Lecture 11 Roles for Each Mode Low density flows High density flows Spread O-D flows Concentrated O-D flows Auto-> Car pools -> Van pools Automated guideway subscription bus taxi -> shared ride taxi -> publicos -> fixed bus route -> light rail -> heavy rail
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Nigel H.M. Wilson 1.201, Fall 2006 3 Lecture 11 Vehicle Type Operating Arrangements Car Van Minibus Bus Light Rail Heavy Rail Drivers Free Low Cost High Cost (conventional transit) Low cost (automated) Fixed Right of way Shared Dual Mode Dedicated Routing and Scheduling Flexible Hybrid Increasing vehicle capacity -----> Increasing passenger flows -----> Spectrum of Services
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Nigel H.M. Wilson 1.201, Fall 2006 4 Lecture 11 Transit Categories (based on Vuchic) Rights of Way Based on degree of segregation Surface with mixed traffic: buses, light rail: with/without preferential treatment Longitudinal separation but at-grade crossing interference: light rail, bus rapid transit Full separation: at-grade, tunnel, elevated
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