Redesign of the Redesign of the Arborway: y Kelley Circle to Murray - PowerPoint PPT Presentation

Redesign of the Redesign of the Arborway: y Kelley Circle to Murray Circle Design By: HUB Engineering, Inc. Michelle Boccia Michelle Boccia Andrew Caparco Andrew Caparco Joseph Mayotte Jocelyn Rothstein

Existing Conditions: Emerald Necklace Jamaica Pond Project Area Arnold Arboretum HUB Engineering, Inc. Redesign of the Arborway April 2008

Existing Conditions: Kelley Circle Kelley Circle Murray Circle HUB Engineering, Inc. Redesign of the Arborway April 2008

Objectives: • Provide a high quality multi ‐ • Provide a high quality multi ‐ • Maintain arterial capacity. • Maintain arterial capacity. use path. use path. • Convert road space to green • Convert road space to green • Provide safe pedestrian • Provide safe pedestrian space. crossings. crossings. • Convert inaccessible green space to accessible green • Separate regional and local • Separate regional and local space. traffic. traffic. • Preserve existing landscape g p • Provide reasonable access to • Provide reasonable access to Provide reasonable access to Provide reasonable access to and mature trees. and from local streets while and from local streets while discouraging cut ‐ thru traffic. discouraging cut ‐ thru traffic. HUB Engineering, Inc. Redesign of the Arborway April 2008

Northeastern Proposed Design: Signal added at Signalized Eliot Street. intersection replaces intersection replaces existing rotary at Two coordinated Murray Circle. signals replace current rotary at Kelley Circle. Proposed 10’ Paved Multi-Use Outer Arborways now Path and 6’ Stone Dust Path two-way 18’ roadways. Existing signal at Crossover signal separates Pond Street on Str t EB Left and EB Through EB Left and EB Through replaced with all- traffic in order to way stop. increase capacity. HUB Engineering, Inc. Redesign of the Arborway April 2008

Paths: Existing Cross Section Proposed Cross Section HUB Engineering, Inc. Redesign of the Arborway April 2008

Origin-Destination Study: HUB Engineering, Inc. Redesign of the Arborway April 2008

Analysis of Proposed Improvements Weekday AM: v/c 0.57 LOS A Weekday PM: Weekday AM: W ay M v/c 0.65 LOS A / 0 65 LOS A v/c 0.59 LOS B Weekday PM: Weekday AM: v/c 0.74 LOS B v/c 0.67 LOS B Weekday PM: v/c 0.60 LOS B / 0 60 LOS B Weekday AM: v/c 0.97 LOS B Weekday PM: v/c 0.80 LOS A / 0 80 LO Weekday AM: Weekday AM: v/c 0.53 LOS B v/c 0.57 LOS B Weekday PM: W kd PM Weekday PM: v/c 0.64 LOS B v/c 0.36 LOS B HUB Engineering, Inc. Redesign of the Arborway April 2008

Existing Recreational Greenspace: Accessible Greenspace Inaccessible Inaccessible Greenspace HUB Engineering, Inc. Redesign of the Arborway April 2008

Proposed Recreational Greenspace: New Greenspace = 4.45 Acres N Newly Accessible Greenspace = 5.60 Acres l Acc ssibl G nsp c 5 60 Ac s Total Greenspace Gained = 10.05 Acres Accessible Accessible Inaccessible Inaccessible Greenspace Greenspace HUB Engineering, Inc. Redesign of the Arborway April 2008

VISSIM… HUB Engineering, Inc. Redesign of the Arborway April 2008

Evaluation: • • Design provides a 10’ paved multi ‐ Design provides a 10’ paved multi ‐ • • Design maintains current arterial Design maintains current arterial use path as well as a 6’ stone dust use path as well as a 6’ stone dust th th ll ll 6’ t 6’ t d d t t capacity. capacity. it it path. path. • Design converts road space to • • All crossings are signal protected. All crossings are signal protected. green space. • Design converts inaccessible • • Design geometrically separates Design geometrically separates green space to accessible green regional and local traffic. regional and local traffic. space. • • • • Design provides reasonable Design provides reasonable Design provides reasonable Design provides reasonable • No mature trees along the access to and from local street. access to and from local street. Arborway disrupted. HUB Engineering, Inc. Redesign of the Arborway April 2008

Questions? HUB Engineering, Inc. Redesign of the Arborway April 2008