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Charrette: Main and King Streets JS
 

Charrette: Main and King Streets JS

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    Charrette: Main and King Streets JS Charrette: Main and King Streets JS Presentation Transcript

    • Northampton Main/King Charrette NelsonNygaard Consulting Associates 1
    • Overbuilt streets cause speeding 2
    • Planning for pedestrian safety: Principles Leaf, W. and Preusser, D. Literature Review on Vehicle Travel Speeds and Pedestrian Injuries Among Selected Racial/Ethnic Groups, NHTSA (USA), 1999. 3
    • Wide Streets Are Less Safe Street widths and injury accident rate, graphic by Peter Swift 4
    • Seattle Conversions (4 to 3 Lane)Roadway Date ADT ADT CollisionLocation Change Before After ReductionGreenwood Ave N 24 to 10 Apr-95 11872 12427 N 80th St to N 50th 58%N 45th Street 45 to 23 Dec-72 19421 20274 Wallingford Area 49%8th Ave NW 18 to 7 Jan-94 10549 11858 Ballard Area 61%Martin Luther King Jr W 15 to 6 Jan-94 12336 13161 North of I 90 60%Dexter Ave N 19 to 16 Jun-91 13606 14949 Queen Ann Area 59%24th Ave NW 14 to 10 Oct-95 9727 9754 NW 85th to NW 65th 28% 5
    • Taking a Road Diet 6
    • Seattle Conversions (4 to 3 Lane)Roadway Date ADT ADT CollisionLocation Change Before After ReductionGreenwood Ave N 24 to 10 Apr-95 11872 12427 N 80th St to N 50th 58%N 45th Street 45 to 23 Dec-72 19421 20274 Wallingford Area 49%8th Ave NW 18 to 7 Jan-94 10549 11858 Ballard Area 61%Martin Luther King Jr W 15 to 6 Jan-94 12336 13161 North of I 90 60%Dexter Ave N 19 to 16 Jun-91 13606 14949 Queen Ann Area 59%24th Ave NW 14 to 10 Oct-95 9727 9754 NW 85th to NW 65th 28% 7
    • Greenwood Avenue: 12,000 cars per day 8
    • Dexter Ave: 15,000 cars per day 9
    • 45th Street in Wallingford: 20,000 cars per day 10
    • Measuring Success To a driver: LOS A LOS F To an economist: LOS F LOS A 11
    • Why Plan for other Modes? Cars on a street 12
    • Why Plan for Other Modes? People in Cars 13
    • So You Can Drive People on a bus 14
    • So You Can Drive People on bikes 15
    • Measuring Success 16
    • Conventional Development Shop School P P P T T T T T T T T T TT T P P Work Play P 17
    • Mixed-Use District Work Shop School PPlay T T Results: <½ the parking <½ the land area ¼ the arterial trips 1/6th the arterial turning movements <¼ the vehicle miles travelled 18
    • How land-use affects travel demand 19
    • How land-use affects travel demand 20
    • One Square MileOne Square Mile, Contemporary development pattern, Irvine, CA One Square Mile, Traditional development pattern, Portland OR (Jacobs, Allan, Great Streets, MIT Press, Cambridge, MA) 21
    • One Square MileOne Square Mile, Northampton today One Square Mile, Traditional development pattern, Portland OR (Jacobs, Allan, Great Streets, MIT Press, Cambridge, MA) 22
    • Poor Parking Availability Produces Traffic CongestionEvery parking space is a magnet forcars. Why provide more parking thanyou have traffic capacity to access thatparking?Poorly managed parking results inmotorists circling for a parking space,from 8 to 74% of traffic in manydowntowns.Eliminating just 10% of vehicles fromany congested location makes trafficfree flowing. Sources: “Cruising for Parking,” Don Shoup, 2006. 23
    • Parking Wastes Money $20,000 $20,000 $20,000$20,000 $20,000 $20,000 $20,000 $20,000 $20,000 $20,000 $20,000 $20,000 $20,000 $20,000 $20,000 $20,000 $20,000 $20,000 $20,000 $20,000 $20,000 $20,000$20,000 $20,000 $20,000 $20,000 24
    • What Land Value Are We Losing? Restaurant Table 5’ x 5’ = 25 ft2 Office Cubicle 8’ x 9’ = 72 ft2 Parking Space Bedroom 9’ x 11’ = 99 ft2 10’ x 20’ = 200 ft2 25
    • Boulder CO: TOD Without the Rails Source: Will Toor & Spenser Havlick 26
    • Boulder’s strategies No nonresidential parking requirements Public garages – 84% funded by parking fees Employee benefits: free universal transit pass (Eco-Pass); Guaranteed Ride Home; ride- matching services; bicycle parking, etc. Eco-Pass: reduces commuter parking demand by 850 spaces 27
    • Multi-Use Path System Source: Will Toor & Spenser Havlick 28
    • A New Bike Culture Source: Will Toor & Spenser Havlick 29
    • Boulder: Results 70% 60% 50% Drive Alone 40% Carpool Bus 30% Walked & Biked Multi-Mode & Other 20% 10% 0% 1995 1997 1999 2001 2003 2005 30
    • How to Apply These Ideas Here? 31
    • Medford, MA 32
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    • Barrier to Utilization ofEastern Spaces 36
    • PEDESTRIAN LEVEL-OF-SERVICEAVERAGEPedestrian Delay Seconds Likelihood of Noncompliance A <10 Low B 10-20 C 21-30 Moderate D 31-40 E 41-60 High F >60 Very High 37
    • PEDESTRIAN LEVEL-OF-SERVICEMAXIMUMPedestrian Delay Seconds Likelihood of Noncompliance A <10 Low B 10-20 C 21-30 Moderate D 31-40 E 41-60 High F >60 Very High 38
    • SQUARE REDESIGN Transform to a Four LegIntersection? 39
    • PROPOSED DESIGNNEW DELAY5-MINUTE WALKING AREA 40
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    • Measure what mattersWhy not Consider…Economic Development Social Justice • Job creation • Do benefits accrue • Real estate value increase equitably? • Retail sales • Are investments spread equitably?Quality of Life Ecological Sustainability • Access to jobs • VMT per capita (=CO2, • Access to shopping NOx, runoff, etc.) • Residential property value • Land use/transportation impact connection 43
    • Location Matters: Transportation is a Significant Household Expense 44
    • The Housing & Transportation Costs Trade-Off Where can a 3-person household earning 80% of area median income live in the Twin Cities? Considering Housing Costs Housing + Transportation Costs 45
    • Housing Costs in Metro Washington, DC 46
    • Housing & Transportation Costs in Metro Washington, DC 47
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    • space…. 50
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    • Northampton Design CharretteMAIN STREET CORRIDOR 52
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    • Northampton Design CharretteKING STREET CORRIDOR 57
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