transportation networks

Wednesday, November 4, 2009

Welcome to Portland, Oregon-The Most Well Connected City in the United States and the Home of the Ugliest Building in the World*

* I work in this building

Tuesday, November 3, 2009

For purposes of discussion we will compare two pairs of neighborhoods using their relative accessibility and connectivity to

illustrate the difficulty of building connected networks in the modern urban setting.

The neighborhoods are: Downtown Gateway

NE 60th Ave LRT station areaNE 148th Ave. LRT station area


1 2 3 4 5 6 7 8 9 10 11 12

13 14 15 16 17 18 19 20 21 22 23 24

25 26 27 28 29 30 3231 33 34 35 36

37 38 39 40 41 42 43 44 45 46 47 48

Broadway

6th Ave.

5th Ave.

4th Ave.

SW P

ine

St.

SW S

tark

St.

SW W

ash

ingto

n S

t.

SW A

lder

St.

SW M

orri

son S

t.

SW Y

am

hill St

.

SW T

ayl

or S

t.

SW S

alm

on S

t.

SW M

ain

St.

SW M

adis

on S

t.

SW J

effe

rson

St.

SW C

olum

bia

St.

Text

Downtown PortlandEast/West-4th Ave. to Broadway

North/South-SW Pine St. to SW Columbia St.

48-Intersections.08 sq. mile

N


Siena, IT-Medieval Connectivity & Intersection Density


1 2 3 4 45 6 7

8

91011

12 1314 15 16 17 18 19 20 21 22 23 24

25 26

Gateway Regional Center NE Wiedler/Halsey to NE Washington/Stark

NE 99th to NE 102nd N

26 Intersections.29 sq. Miles


Gateway Concept Plan by Peter Calthorpe N

Approx. Capital Investment For New Streets and Row-$70 million


!!!!

!!!!!

"#

"#"#

"#

"#

"#"# "#

STA

RK

ST

102ND AVE

GLIS

AN

ST

MA

RK

ET S

T

99TH AVE

$%& 84

114TH AVE

BU

RN

SID

E S

T

94TH AVE

96TH AVE

WE

IDLE

R S

T

MA

IN S

T

106TH AVE

WA

SH

ING

TON

ST

PIN

E S

T

112TH AVE

111TH AVE

110TH AVE

117TH AVE

108TH AVE

100TH AVE

AN

KE

NY S

T

HA

LSE

Y S

T

103RD DR

BELL DR

92ND PL

DAV

IS S

T

TILLAM

OO

K S

T

CHERRY BLOSSO

M DR

113TH AVE

93RD AVE

118TH AVE

119TH AVETAY

LOR

ST

107TH PL

MILL S

T

PINE CT

PAC

IFIC S

T

FLAN

DE

RS

ST

MA

DIS

ON

ST

104TH AVE

116TH PL

109TH AVE

OR

EG

ON

ST

AS

H S

T

OA

K S

T

WA

SC

O S

T

THO

MP

SO

N S

T

EU

GE

NE

ST

92ND AVE

HO

LLAD

AY ST

107TH AVE

MADISO

N DR

105TH AVECLAY ST

STE

PH

EN

S S

T

114TH PL

SA

N R

AFA

EL S

T

HO

YT S

T

EV

ER

ETT S

T

103RD AVE

MILL C

T

HA

NC

OC

K D

R

116TH CT

106TH PL

97TH AVE

ALD

ER

ST

95TH PL

YAM

HILL S

T

115TH AVE

101ST AVE

ASH CT

SC

HU

YLE

R S

T

103RD PL

SA

LMO

N S

T

BR

OA

DW

AY

MO

RR

ISO

N S

T

HA

NC

OC

K S

T

MU

LTNO

MA

H S

T

116TH AVE

109TH CT

CLA

CK

AM

AS

ST

GATEWAY TC

IRV

ING

ST

MARKET DR

108TH PL

104TH C

T

HA

WTH

OR

NE

BLV

D

CO

UC

H C

T

HA

SS

ALO

ST

SA

LMO

N C

T

EV

ER

ETT C

T

113TH PL

MILL S

T

111TH AVE

108TH AVE

THO

MP

SO

N S

T

EV

ER

ETT S

T

CLAY S

T

94TH AVE94TH AVE

EV

ER

ETT S

TWA

SH

ING

TON

ST

OR

EG

ON

ST

117TH AVE

100TH AVE

HA

NC

OC

K S

T

117TH AVE HO

LLAD

AY ST

THO

MP

SO

N S

T

STE

PH

EN

S S

T

103RD AVE

106TH AVE

AN

KE

NY S

T

118TH AVE

117TH AVE

OA

K S

T

EV

ER

ETT S

T

108TH AVE

100TH AVE

107TH PL

116TH AVE

104TH AVE

108TH AVE

MU

LTNO

MA

H S

T

DAV

IS S

T

MILL C

T

118TH AVE

105TH AVE

TAYLO

R S

T

112TH AVEP

INE

CT

109TH AVE

109TH AVE

THO

MP

SO

N S

T

MA

IN S

T

102ND AVE

92ND AVE

106TH AVE

113TH AVE

93RD AVE

97TH AVE

CLAY ST

THO

MP

SO

N S

T

111TH AVE

113TH AVE

114TH AVE

MO

RR

ISO

N S

T

SC

HU

YLE

R S

T

OR

EG

ON

ST

AS

H S

T

MA

IN ST

116TH PL

SA

N R

AFA

EL S

T

MA

DIS

ON

ST

97TH AVE

OA

K S

T114TH PL 113TH AVE

EU

GE

NE

ST

BR

OA

DW

AY

AS

H S

T

STE

PH

EN

S S

T

101ST AVE

107TH AVE

112TH AVE

106TH AVE

SA

LMO

N S

T

ALD

ER

ST

MA

IN S

T

YAM

HILL S

T

AN

KE

NY S

T

105TH AVE

110TH AVE

PAC

IFIC S

T

104TH AVE

114TH PL

119TH AVE

MILL C

T

106TH AVE

PIN

E S

T 118TH AVE

109TH AVE

108TH AVE

100TH AVE

113TH AVE

PAC

IFIC S

T

114TH PL

112TH AVE

$%& 205

$%& 205

$%& 84!0

5001,000

Feet

Existing S

treet

Proposed N

ew S

treet

Pedestrian C

onnection

!!!!

Proposed S

treet VacationC

entral Gatew

ay Am

endment A

reaG

ateway R

egional Center

Proposed A

mendm

ent P

ortland Master Street P

lanM

ap 11.11.3G

ateway D

istrict

Analysis by C

. Hainey; A

nalysis Date: 04-29-09; P

lot Date: 10-14-09; File N

ame: P

ortlandMasterS

treetPlan_G

ateway.m

xd

Public B

ike and Pedestrian A

ccessways w

ill be required on these blocks suchthat spacing of public connections shall be no m

ore than 330 feet where full

street connections are more than 530 feet.

"#U

pdated October 22, 2009

Revised Gateway Street Plan-Adopted by Council Oct. 22, 09 N

Cost Unknown at this timeTuesday, November 3, 2009

Intersection Density ComparisonDowntown vs. Gateway Regional Center

Downtown48 Intersections/.08 sq. miles

600 stations/sq. mileGateway Regional Center

26 intersections/.29 sq. miles90 stations/sq. mile


60th

Ave

Sta

tion

/Blu

e Li

ne

Inte

rsec

tion

Den

sity

45 I

nte

rsec

tion

.19 s

q. m

iles

1

1 2 3 4 5 6

7 8 9

10

11

12

13 14 15 16 17 18

19

2021

2223 24

25

26

27 2829

30

31

32

33 34 35 3637

38

39 40 41 42 43 44 45


60th Ave. Station/Blue Line

Approx. $7 million in local street improvementsTuesday, November 3, 2009

1 2 3

45

6

7

8

9

10

NE 148th Ave LRT Station Area11 Intersections-.19 sq. miles

11


Intersection Density ComparisonNE 60th LRT Station Area vs. NE 148th LRT

Station AreaNE 60th Ave. LRT Station Area45 Intersections/.19 sq. miles

236 stations/sq. mileNE 148th Ave. LRT Sation Area26 intersections/.29 sq. miles

57 stations/sq. mileTuesday, November 3, 2009

Approx. $21.2 million in local street improvements


#1 Obstacle To Improving Transportation Networks

Sheer Enormity of the ProblemIncrease in Intersection Density of Approximately six fold



Direct Outgrowth of Obstacle #1Enormous Cost of Creating New Transportation NetworksTo Create or Improve Transportation Networks in Three Areas

1. NE 60th Ave. LRT Station Area: $7 million2. Gateway Regional Center: $70 million3. NE 148th Ave. LRT Station Area: $21.2 million

$98.2 million



Political and Social realities!!Believe it or Not Large Numbers of People Prefer the Status QuoLegal Barriers Involved in Condemning Private Land for Public Uses


transportation networks

Automotive