Guide for the Analysis of Multimodal Corridor Access Management (2018) / Chapter Skim
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Pages 16-20
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From page 16... ...
16 Description A TWLTL provides a location in the center of the roadway for storing vehicles from either direction that are waiting to make a left turn. TWLTLs can be developed along undivided roadways by widening the roadway or by reducing the number of through lanes (i.e., a road diet)
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Continuous Two-Way Left-Turn Lanes 17 Access Management Technique Performance Trends and Documented Performance Relationships Operations Safety Install continuous TWLTL. ↑ ↓ ↓ ↕ ↑ ↕ ↓ ↓ Note: Trends are relative to a before condition of an undivided roadway.
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18 Guide for the Analysis of Multimodal Corridor Access Management Motor Vehicle Safety NCHRP Report 420 (3) summarized the results of 12 studies between 1974 and 1994 that investigated the change in crash rates following the installation of TWLTLs.
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Continuous Two-Way Left-Turn Lanes 19 Bus Operations Chapter 18 in the HCM6 (2) can be used to estimate the change in average bus speeds resulting from improvements in midblock running speed.
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20 Guide for the Analysis of Multimodal Corridor Access Management 11. Dowling, R., G
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