Going Mobile: Managing Transportation Choices DeWayne Carver, AICP, - - PowerPoint PPT Presentation

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Going Mobile: Managing Transportation Choices DeWayne Carver, AICP, - - PowerPoint PPT Presentation

Nov 30, 2023 224 likes •963 views

Going Mobile: Managing Transportation Choices DeWayne Carver, AICP, CNU HPE Hall Planning & Engineering, Inc. Introduction Bicyclist and bike commuter (LCI) Member AICP, CNU Prior work and research on alternative

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Going Mobile: Managing Transportation Choices

DeWayne Carver, AICP, CNU

HPE

Hall Planning & Engineering, Inc.

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Introduction

  • Bicyclist and bike commuter (LCI)
  • Member AICP, CNU
  • Prior work and research on alternative

transportation

  • Senior Project Manager, HPE
  • Focus on New Urbanist/Walkable

Communities transportation design

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Content

  • The Big Picture: Connectivity
  • Street Level: Streets for People
  • Transit
  • Parking
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What can transportation planning influence?

  • Manage Traffic Congestion
  • Increased viability for other modes of

transportation

– Walking – Biking – Transit

  • Health and Fitness
  • Main Street’s economic health
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The Big Picture: Connectivity

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Connectivity takes many forms

  • Street network
  • Bike lane network
  • Sidewalk network
  • Transit network
  • Paths and trails
  • Thoroughfares
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Intersections/Sq. Mi.

  • Decatur, Georgia 80 intersections/sq. mi.
  • LEED ND standard 150 intersections/sq. mi.
  • Desirable conditions 300-400 intersections/sq. mi.
  • HPE

100 intersections/sq. mi.

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Key points

  • Americans are getting sedentary and
  • bese
  • Moderate exercise, such as walking, more

sustainable than vigorous routines

  • Bicycling and walking are the most easily

adopted and sustained

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Origin Destination How do we get from here to there?

The Power of Connected Streets

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Origin Destination How do we get from here to there?

The Power of Connected Streets

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Origin Destination How do we get from here to there?

The Power of Connected Streets

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Origin Destination 1 Possible Route

The Power of Connected Streets

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Origin Destination Add a second pair of streets to the network, and…

The Power of Connected Streets

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Origin Destination 2 Possible Routes

The Power of Connected Streets

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Origin Destination Add another street in each direction… y= 2 x= 2

The Power of Connected Streets

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Origin Destination More Possible Routes y= 2 x= 2

The Power of Connected Streets

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Origin Destination More Possible Routes y= 2 x= 2

The Power of Connected Streets

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Origin Destination More Possible Routes y= 2 x= 2

The Power of Connected Streets

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Origin Destination More Possible Routes: 6 in all, without doubling back y= 2 x= 2

The Power of Connected Streets

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The Casey Hawthorne Traffic Routes Equation (only accounts for one direction)

(x!)(y!) = # of possible routes (x+y)!

The Power of Connected Streets

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Origin Destination y= 4 x= 3 Continue enhancing the network: 4 x 3 grid yields 35 routes

The Power of Connected Streets

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Origin Destination y= 4 x= 5 Continue enhancing th126 routes

The Power of Connected Streets

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Make 12,870 routes

The Power of Connected Streets

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Beaufort, SC

The Power of Connected Streets

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Connectivity

  • Traditional street networks can move as

much traffic as larger roads, but with fewer lanes per street

  • Increased connectivity allows traffic to filter

through at lower speeds

  • Auto LOS is lower, but walkability and

sense of place is much higher

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Connectivity

  • North-south streets through downtown

Lawrence, KS carry as much or more traffic than arterial Iowa Street

  • Which street has more walkability – Mass

Street downtown or Iowa Street?

  • Iowa carried 32,000 trips/day (average in

2004

  • Downtown streets combined carried

39,000 trips/day

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Street Level: Streets for People

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What is good “walkability”?

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Recreation Walking

vs.

Destination Walking

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Organizing by context

ZHA, Inc.

Dover, Kohl & Partners

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Functional classification

Rural Suburban Compact Urban

Arterial Collector Local

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Context Determines Design

  • Streets must reflect, not define, land use
  • Walkable streets are inherently bike-able
  • What does walkability mean for street

design?

  • Ex. Commerce Ave street trees
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Top 10 Walkability Factors – Urban Form

  • 10. Narrow Streets
  • 9. Street Trees
  • 8. Traffic Volumes
  • 7. Sidewalks
  • 6. Interconnected

Streets

  • 5. On Street Parking
  • 4. Lower Traffic Speeds
  • 3. Mixed Land Use
  • 2. Buildings Fronting St.
  • 1. Small Block Size!
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Top 3 Walkability Factors – Pedestrians

  • 3. Vehicle Speed
  • 2. Vehicle Speed
  • 1. Vehicle Speed
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Pedestrian Fatalities & Speed

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Humane Streets

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Transit

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Transit

  • Can also be organized by context
  • Decatur has more options than most

similarly-sized towns

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On Marta’s Drawing Board

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  • 8 community bus programs in Broward CO

Florida

  • Found high correlation to population

density

  • Operated in support of regional transit

system

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  • .833 correlation between population

density and pass. per hour

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  • Average cost of $2.18/trip
  • $1.98 trip for regular service
  • $17/trip for paratransit
  • -.58 correlation between income and

ridership

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Parking

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Parking

  • Estimated value of one adjacent on-street

space: $200,000/year in retail sales (Bob Gibbs)

  • 85% full, is full
  • Use parking pricing to control turnover
  • See “High Cost of Free Parking” Donald

Shoup

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