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SR A1A / SR 200 Reconstruction Project

SR A1A / SR 200 Reconstruction Project. Public Information Meeting. PROJECT LIMITS. I-95 to West of Still Quarters Rd. FM # 210711-2. West of Rubin Davis Lane to East of CR-107/O’Neil-Scott Rd . FM #210712-4. West of Still Quarters Rd to West of Rubin Davis Lane FM # 210712-3.

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SR A1A / SR 200 Reconstruction Project

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  1. SR A1A / SR 200 Reconstruction Project Public Information Meeting

  2. PROJECT LIMITS I-95 to West of Still Quarters Rd. FM # 210711-2 West of Rubin Davis Lane to East of CR-107/O’Neil-Scott Rd. FM #210712-4 West of Still Quarters Rd to West of Rubin Davis Lane FM # 210712-3

  3. Diverging Diamond Interchange

  4. What is a Diverging Diamond Interchange? • The diverging diamond interchange, known as a DDI, is designed to allow two directions of traffic to temporarily cross to the opposite side of the roadway to provide easier access on and off the freeway. • FEATURES • Limits number of traffic signal phases required to move motorists through the interchange • Movements on and off the freeway have fewer conflict points and can be free-flowing • Moves high volumes of traffic without increasing the number of lanes in an interchange.

  5. What are the Benefits? Safety • Fewer conflict points (14 for DDI, 26 for conventional) • Better sight distance at turns • Wrong way entry to ramps extremely difficult Operations • Simple left and right turns from all directions • Increases left turn lane capacity without adding lanes • Two phase signals with shorter cycle lengths reduces delay • Better storage between the ramp terminals

  6. Thank you for coming!

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