May 18, 2017

PROJECT TEAM

• City of Boston• James Gillooly

Deputy Commissioner

• William ConroyProject Manager

• Tetra Tech• Erik Maki, PE, PTOE

Project Manager

• Ian McKinnon, PE, PTOEProject Engineer

2

AGENDA

• GOALS • RECAP: ADJACENT PROJECTS + TRAFFIC VOLUMES• WYNN PROJECT CHANGES - NPC• LOWER MYSTIC REGIONAL WORKING GROUP• TRANSPORTATION ANALYSIS• CONCEPT PLANS• RESILIENCY STUDY• Questions / Comments

3

PROJECT GOALS – 2009 & NOW

Improve pedestrian connections / safety to MBTA Transit Stations and community

Decrease traffic congestion Protect Main Street from cut-through traffic

Create public/open spaceProvide opportunities for appropriate development

Provide bicycle connectionsIncrease on-street parking 4

ADJACENT DEVELOPMENT PROJECTS

• Casino • 46,333 Daily Person Trips• 17,550 Daily Vehicle Trips• 2914 parking spaces

• 5 Middlesex (Somerville)• 1.75M SF Mixed Use• 220 Residential Units• 18,500 Daily Trips• 1000 parking spaces

• Partners Health Care• BHA (One Charlestown)

• 2,200 Residential Units• 14,300 Daily Trips• 1900 parking spaces

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2017 – DAILY CORRIDOR VOLUMES

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2017 SULLIVAN SQ DAILY VOLUMES

RutherfordAve

ADT: 16,200

ADT: 11,800

ADT: 8,800 (WB)

ADT: 10,200

ADT: 24,200

ADT: 21,600

ADT: 18,900 (EB)

ADT: 15,400

ADT: 26,900UNDERPASS

Total Entering: ~100,800

Vehicles Per Day

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SULLIVAN SQ UNDERPASS VOLUMES

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2015

2008

VE

HIC

LES

PE

R 1

5 M

in

TIME OF DAY

EQUAL MORNING

PEAK HOUR START

HIGHER MORNING DEMAND

EARLIER AND HIGHER AFTERNOON PEAKEXTENDED MORNING PEAK

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MBTA BUS ROUTES - GROWTH

86

CT2

8990

101

92

95

104

105

109

9392

91

86

22%

104

63%

105

49%

109

81%91

59%

9

Source: UIL

89, 90, 95, 101

86, 91, CT2

104, 105, 109

92, 93

NEW CIRCULATION*

*MBTA STILL EVALUATING FUTURE ROUTES AND ACCESS

MBTA BUSES- CIRCULATION

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REGIONAL GROWTH

lowermysticstudy.org 11

WYNN PROJECT CHANGE - NPC

Vehicle Trips to Casino = 17,550/day (Fridays)*EVERETT

BOSTON

56%

63%

*CASINO TRIPS THROUGH SSQ ~ 10,440 VEHICLES12

WYNN PROJECT CHANGE - NPC

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

CASINO - FRIDAY HOURLY VEHICLE TRIPS THRU SSQ

ALL TRIPS UNDERPASS

TOTAL TRIPS THRU SSQ

TRIPS THAT WOULD USE THE UNDERPASS

63% EXITING18% SURFACE45% UNDERPASS

56% ENTERING 42% SURFACE14% UNDERPASS

3PM

+500

11PM

+800

7PM

+600

11AM

+30045%

14%

5 AM +200

1 AM +500

ADDED TRIPS(~10,440 Daily)

UNDERPASS(~5,200 Daily)

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SULLIVAN SQ UNDERPASS VOLUMESV

EH

ICLE

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TIME OF DAY

ADDED CASINO TRIPS(+5200 Daily)

EXISTING UNDERPASS(26,900 Daily)

CASINO ADDED TRAFFIC

14

TRAFFIC ANALYSIS RESULTS

• Traffic Models• Lower Mystic Regional Working Group• Tt

• Synchro is a macroscopic analysis and optimization software program for signalized intersections, unsignalized intersections and roundabouts. Allows modeling of individual intersections, corridors or grid networks.

• SimTraffic is a microscopic model where each vehicle in the traffic network is individually tracked through the model and comprehensive operational measures of effectiveness (MOEs) are collected on every vehicle during each 0.1-second of the simulation.

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LOWER MYSTIC WORKING GROUP

CTPS Model Output - January 23, 2017 - Surface vs. UnderpassRegional Location AM Peak Hour Delay (Seconds) PM Peak Hour Delay (Seconds)

INT # Intersection City2040

Surface2040

UnderpassMore

Favorable2040

Surface2040

UnderpassMore

Favorable

32 Sullivan Square (Route 99 @ Mystic/Main/Cambridge) Charlestown 106 65 Underpass 52 33 Underpass31 Rutherford Ave @ Austin St/Gilmore Bridge Charlestown 95 38 Underpass 115 67 Underpass30 Rutherford Ave @ Rt 1 Ramps Charlestown 75 31 Underpass 42 23 Underpass29 City Square (Chelsea St @ Rutherford/No. Washington) Charlestown 73 41 Underpass 92 51 Underpass56 Main @ Austin St Charlestown 36 18 Underpass 82 46 Underpass

Source: Lower Mystic Regional Working Group Final Presenation 1-23-2017

SYNCHRO Performance Measures

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TRAFFIC ANALYSIS RESULTS – AM Peak - Tt

AT-GRADE CONCEPT UNDERPASS CONCEPTSYNCHRO Performance Measures

DRAFT

17

TRAFFIC ANALYSIS RESULTS – PM Peak - Tt

AT-GRADE CONCEPT UNDERPASS CONCEPTSYNCHRO Performance Measures

DRAFT

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TRAFFIC ANALYSIS RESULTS- SIMULATION

2040 Future Build Rutherford Avenue Reconstruction – SIMTRAFFIC Performance Measures

AM PM

At Grade Underpass At Grade Underpass

Total Delay(hr) 1072 764.2 1277 964.5

Total Del/Veh (s) 720 175.6 615.2 202.7

Stop Delay (hr) 1048 649.4 1237.2 827.7

Stop Del/Veh (s) 703.8 149.2 596 173.9

Travel Dist (mi) 2681.6 9314.5 4420.5 9616.3

Travel Time (hr) 5285.7 2564.2 5484.7 3202.6

Avg Speed (mph) 2 8 3 7

Fuel Eff. (mpg) 2.1 11.1 3.2 9.7 19

TRAFFIC ANALYSIS RESULTS

• PEDESTRIAN & BICYCLES• Both Alternatives would have safe facilities

• Underpass Alternative has shorter Intersection Cycle Lengths• Pedestrian crossing at Underpass ramps is limited• Several New Crossing Points added

• Signals will have LPI (advanced walk)• Countdown pedestrian heads, APS pushbuttons (Advanced ADA)

• Separated Bike Lanes – both sides of corridor• Bike signal indications and Bike LBI

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PEDESTRIAN CROSSING SIGNALS

DRAFT

1150’ 800’ 1350’160’

950’

1050’

Rutherford Avenue

Essex StAustin St

City SqArlington

Mishawum

New Crossing Signal

Community College

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An UNDERPASS CONCEPT

FAMILY OF UNDERPASS ALTERNATIVES• Urban Street Grid

• Ped + Bike Facilities• Open Space and Parks• TOD Parcels

• Maffa Way / Mystic Ave• Square Blocks or Crossover

• Arlington Street / MBTA driveway• Traffic Signal• Harbor Path Crossing• Bus access to Underpass

• Development Parcels

• Ryan Playground• Mid-Corridor

• Community College • Industrial Park• Underpass Transitions

• Austin Street• BPDA

• Revisit Urban Design• Cecil Group• Public Involvement

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UNDERPASS REDUCTION

EXISTING CONCEPT PROPOSED

GRADE 4% 6%

LENGTH 3400’ 1900’

AUSTIN STREET SULLIVAN SQUAREEXISTING CONCEPT PROPOSED

GRADE 4% 6%

LENGTH 1800’ 1100’

AFTER

BEFORE

AFTER

BEFORE

UNDERPASS TYPICAL ROADWAY PROFILE (EXAGGERATED)

REDUCED UNDERPASS REDUCED UNDERPASS

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An UNDERPASS CONCEPT

• URBAN STREET GRID• Simplify Major Movements• Ped & Bike Facilities• TOD Parcels• Ryan Playground • Arlington Street Parcels• Underpass Transitions

DRAFT

T

Ryan Playground

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An UNDERPASS CONCEPT

T

• Maffa Way at Mystic Ave• Crossover Alternative - revised• One direction - to Mystic Ave• Traffic Signal• Ped crossing to Assembly Sq• Dedicated lane for MBTA

buses

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An UNDERPASS CONCEPT

T

• Maffa Way at Mystic Ave• Crossover Removed• Square Blocks

• Short spacing• Traffic queues

• Parcel Shape

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An UNDERPASS CONCEPT

T

• Pedestrian & Bicycles• Separated bike lanes• Access to:

• MBTA station• Assembly Sq• Ryan Playground• Neighborhood• Multi-use Path

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An UNDERPASS CONCEPT

• Arlington St/MBTA Yard• New Signals• MBTA Bus Yard

Access/Egress• 35 Acre Parcel

• Future development• Pedestrian Path Crossing• Bus access to Underpass

• Bypass Sullivan Square

DRAFT

Ryan Playground

Harbor walk

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An UNDERPASS CONCEPT

• Arlington St/MBTA Yard• New Signal• MBTA Bus Yard

Access/Egress• Pedestrian Path Crossing

• Hybrid Signal• Parcel access to Underpass

• Bypass Sullivan Square

DRAFT

Ryan Playground

Harbor walk

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An UNDERPASS CONCEPT

• Ryan Playground• Local road access/egress• Expanded Open Space• Expanded parking• Portal Entrance

DRAFT

Ramp Roadway

Covered Deck or Air Rights Development

Bike/Multi-use Path

Park/Landscaping

Ryan Playground

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MULTI-USE PATH & OPEN SPACE

DRAFT

Ramp Roadway

Covered Deck or Air Rights Development

Linear Park

Bike/Multi-use Path

+50’ Linear Park

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MULTI-USE PATH & OPEN SPACE

DRAFT

+50’ Linear Park

Linear Park

Bike/Multi-use Path

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MULTI-USE PATH & OPEN SPACE

DRAFT

+50’ Linear Park

Linear Park

Bike/Multi-use Path

Ramp Roadway

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SHARED-USE PATH at AUSTIN STREET

DRAFT

PEDESTRIAN BRIDGE

COMMUNITY COLLEGELinear Park

Bike/Multi-use Path

Ramp Roadway

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SHARED-USE PATH at RTE 1 RAMPS

DRAFT

Linear Park

Bike/Multi-use Path

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SHARED-USE PATH at CITY SQUARE

DRAFT

Linear Park

Bike/Multi-use Path

Dedicated Bus Lane

Area comparison from City Sq. to MishawumExisting pavement area = 745,800 sf (17.1 ac)Proposed pavement area= 577,650 sf (13.3 ac.)22% Reduction in pavementOpen Space Gained= 168,150 sf (3.86 ac) 36

CROSS SECTION VIEW

EXISTING at ESSEX STREET: 143’ Pavement

PROPOSED: 86’ Pavement, +50’ LINEAR PARK

37

RAISED CROSSINGS

• Typical Minor Street Crossings from Neighborhood

• Baldwin Street• Essex Street• West School Street

• Raised Crossing to prioritize pedestrians and bikes

• Source: Google Maps: Pond St, Brookline 38

SUPPORTING THE VISION

2013 BPDA Community Study• Better access to MBTA• New open spaces• Mixed-use Transit oriented development• Pedestrian friendly streetscape• Neighborhood connections• Accommodating bus operations

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An UNDERPASS CONCEPT

DRAFT

• Underpass - Family of Alternatives

• TOD PARCELS• Parcel Layout• Air Rights• Decking• Open Space

• Subconsultants• Cecil Group• Brown Richardson

& Rowe

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3

7

62

1

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RESILIENCY STUDY - UPDATE

DRAFT

Source: Kleinfelder

Learn More and Get Updateswww. boston.gov/climate-ready

DESIGN GOALS:?✓ Protect the Community

from Coastal Flooding✓ Make Infrastructure

Resilient✓ Enhance Waterfront

Access✓ Expand Open Space

41

http://www.imagine.boston.gov/

RESILIENCY STUDY - UPDATE

Schrafft’s

FLOOD ELEVATION

1. PROPOSED BERM/WALL

DRAFT

To Main St

Mystic River

Source: Kleinfelder

2. RAISED ROADWAY

42

NORTH WASHINGTON ST BRIDGE

BUS LANE

SEPARATED BIKE LANES

Source: HSH/ULI

DRAFT

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Thank you for your continued involvement

FOR MORE INFO: https://www.cityofboston.gov/transportation/rutherford/

QUESTIONS?

NEXT MEETINGS – TBD

Austin, TXLance Armstrong path Photo credit: Adam Coppola Photography

44

https://www.cityofboston.gov/transportation/rutherford/

Slide Number 1PROJECT TEAMAGENDAPROJECT GOALS – 2009 & NOWADJACENT DEVELOPMENT PROJECTS2017 – DAILY CORRIDOR VOLUMES2017 SULLIVAN SQ DAILY VOLUMESSULLIVAN SQ UNDERPASS VOLUMESMBTA BUS ROUTES - GROWTHMBTA BUSES- CIRCULATIONREGIONAL GROWTHWYNN PROJECT CHANGE - NPCWYNN PROJECT CHANGE - NPCSULLIVAN SQ UNDERPASS VOLUMESTRAFFIC ANALYSIS RESULTSLOWER MYSTIC WORKING GROUPTRAFFIC ANALYSIS RESULTS – AM Peak - TtTRAFFIC ANALYSIS RESULTS – PM Peak - TtTRAFFIC ANALYSIS RESULTS- SIMULATIONTRAFFIC ANALYSIS RESULTSPEDESTRIAN CROSSING SIGNALSAn UNDERPASS CONCEPTUNDERPASS REDUCTIONAn UNDERPASS CONCEPTAn UNDERPASS CONCEPTAn UNDERPASS CONCEPTAn UNDERPASS CONCEPTAn UNDERPASS CONCEPTAn UNDERPASS CONCEPTAn UNDERPASS CONCEPTMULTI-USE PATH & OPEN SPACEMULTI-USE PATH & OPEN SPACEMULTI-USE PATH & OPEN SPACESHARED-USE PATH at AUSTIN STREETSHARED-USE PATH at RTE 1 RAMPSSHARED-USE PATH at CITY SQUARECROSS SECTION VIEWRAISED CROSSINGSSUPPORTING THE VISIONAn UNDERPASS CONCEPTRESILIENCY STUDY - UPDATERESILIENCY STUDY - UPDATENORTH WASHINGTON ST BRIDGEThank you for your continued involvement