SUMMARY OF FINDINGS - Phoenix, Arizona 20th...20th Street Bicycle and Pedestrian Facilities Improvement Project #:20486 June 28, 2017 Page 3 Kittelson & Associates, Inc. Phoenix, Arizona

FILENAME: H:\20\20486 - 20TH STREET PED-BIKE CONNECTION\REPORTS\01 EXISTING CONDITIONS TM\20486 20TH ST BIKE-PED

EXISTING CONDITIONS TM.DOCX

TECHNICAL MEMORANDUM 20th Street Bicycle and Pedestrian Facilities Improvement

Maricopa Association of Governments Design Assistance

Existing Conditions

Date: June 28, 2017 Project #:20486 To: Eileen Yazzie, City of Phoenix From: Radu Nan and Joel Amarillas cc: Jason Stephens, Maricopa Association of Governments

SUMMARY OF FINDINGS � The average and 85th-percentile vehicle speeds along 20th Street between Colter Street and

Campbell Avenue are indicative of a highly stressful riding street environment for cyclists. The combination of high speed and daily traffic volumes above 10,000 vehicles would require a separated bicycle facility to maintain a lower level of traffic stress for cyclists.

� Between 2011 and 2015, a total of 23 pedestrian and bicycle related crashes were recorded, four of which were serious injuries and one fatality. The fatal crash took place at the intersection of 20th Street and Camelback Road in 2013, when a car failed to yield the right-of-way and struck a pedestrian.

� The existing street geometric characteristics vary throughout the corridor. The proposed alternatives will be solutions based on the segment context, including: the number of vehicle lanes, speed limit, lighting, sidewalks, bicycle lanes, and on-street parking.

� Daily vehicle traffic volumes along 20th Street are typical of collector streets for the segments between Colter Street and Camelback Road, and Highland Avenue and Campbell Avenue. The weekday 24-hour tube counts for these segments were 10,060 and 10,260 vehicles, respectively.

� Bicycle and pedestrian volumes were collected during the morning and evening commute hours at the intersections of 20th Street and Missouri Avenue, Camelback Road, Highland Avenue, Campbell Avenue, Indian School Road, and Osborn Road. In general, there are more pedestrians than bicycles along the corridor, with bicycle counts ranging from zero to three.

20th Street Bicycle and Pedestrian Facilities Improvement Project #:20486 June 28, 2017 Page 2

Kittelson & Associates, Inc. Phoenix, Arizona

Twentieth Street is a two lane roadway that can provide a safe, easy, low-stress rideable and walkable thoroughfare to connect residents to schools, employment, restaurants and shopping (i.e. Town and Country Shopping Center, Camelback Colonnade Center), and major bus routes. The 20th Street corridor is located approximately a quarter mile east of SR-51, and provides access to four grade separated non-motorized passes of the freeway at the Grand Canal, Campbell Avenue, Maryland Avenue, and the Arizona Canal.

The 3.75 mile long project corridor encompasses 20th Street between the Grand Canal and Glendale Avenue; and a connection to the Piestewa Peak on either Glendale Avenue between 20th Street and Squaw Peak Drive or along Ocotillo Road. This corridor is the 4th highest priority of the City of Phoenix Bicycle Master Plan, connecting the regional shared-use path along the Grand Canal to the access road.

The purpose of this technical memorandum is to catalogue the street geometric characteristics and summarize the existing traffic volumes and vehicle speed information collected along the study corridor.

DATA COLLECTED Pedestrian and bicycle crossings, and vehicle turning movement volumes were collected Thursday, February 2, 2017 between 7:00 a.m. to 9:00 a.m. and 4:00 p.m. to 6:00 p.m. at these signalized intersections:

x Camelback Road at 20th Street x Highland Avenue at 20th Street x Indian School Road at 20th Street x Osborn Road at 20th Street

A speed study was also conducted for 24 hours on February 2, 2017 along the following corridors:

x Between Campbell Avenue & Highland Avenue (also on February 4, 2017) x Between Highland Avenue & Camelback Road (also on February 4, 2017) x Between Camelback Road & Colter Street

12-hour driveway mid-week traffic volumes were collected at six locations along 20th Street between Highland Avenue and Camelback Road. In addition, cut-through traffic counts were collected across the Bethany Home Road traffic diverter on 20th Street.



TRAFFIC DATA SUMMARY Daily vehicle traffic volumes along 20th Street are typical of collector streets for the segments between Colter Street and Camelback Road, and Highland Avenue and Campbell Avenue. The weekday 24-hour tube counts for these segments were 10,060 and 10,260 vehicles, respectively.

Twentieth Street serves the Town and Country Shopping Center and the Camelback Colonnade Center between Camelback Road and Highland Avenue. It also provides a connection to the SR-51 south ramps at Highland Avenue from Camelback Road. The street cross section is six lanes wide within this segment and serves approximately 21,020 vehicles per day.

Vehicles speeds were also collected along the three road segments listed above. Cyclist comfort or level of traffic street (LTS) is closely related to adjacent vehicle volume and speeds. The 85th-percentile speeds measured along all three road segments are higher than the posted speed limits. Table 1 summarizes the average and 85th-percentile vehicle speeds by travel direction (SB-southbound, NB-northbound) and street segment. These travel speeds are indicative of a highly stressful riding street environment for cyclists. The combination of high speed and daily traffic volumes above 10,000 vehicles would require a physically separated bicycle facility to maintain a lower level of traffic stress for cyclists.

Table 1 Vehicle Speeds Summary by Street Segment

Roadway Segment Average Weekday Vehicle Speeds

(mph) 85th-pecentile Weekday Vehicle

Speeds (mph)

SB Travel NB Travel SB Travel NB Travel

Colter Street Ave to Camelback Road 36 35 41 40

Camelback Road to Highland Ave 32 32 39 38

Highland Ave to Campbell Ave 32 33 39 39

Bicycle activity at the Camelback Road and Highland Avenue intersections is low during the morning and evening commute hours and could be related to the high LTS noted in the previous section.

The following pages summarize the speed, daily volumes, and turning movement counts collected.

ADT = 10,26085th Percentile Speed = 39 MPH


ADT = 5,356ADT = 5,356





25

30

35

30

35

51

51

Glendale Ave

16th

St

20th

St

24th

St

16th

St

20th

St

24th

St

Ocotillo Rd

Maryland Ave

Flynn Ln

Lamar Rd

Ocotillo Rd

Claremont St

Berridge Ln

Palo Verde Dr

Rancho Dr

Solano Dr

Montebello Ave

Like Ave

San Miguel AveSan Juan Ave

Marshall AveMarshall Ave

Colter St

Campbell Ave

Glenrosa Ave

Turney Ave

Coolidge St

Hazelwood St

Meadowbrook Ave

Devonshire Ave

Fairmount Ave

Clarendon Ave

Weldon Ave

Whitton Ave

Mitchell Dr

Monterey Way

Greenfield Rd

Grand Canal Trail

Arizona Canal Trail

21st

St

22nd

St

21st

St

22nd

St

21st

St

22nd

St

21st

St

22nd

St

19th

St

19th

St

19th

St

18th

Pl

18th

St

Bethany Home Rd

Missouri Ave

Camelback Rd

Highland Ave

Indian School Rd

Osborn Rd

Lincoln Dr

Squaw Peak Dr

Piestewa Peak Park

Granada Park

Madison Camelview Elementary

School

Linda Loma School Center

51

51

Glendale Ave

16th

St

20th

St

24th

St

16th

St

20th

St

24th

St

Ocotillo Rd

Maryland Ave

Flynn Ln

Lamar Rd

Ocotillo Rd

Claremont St

Berridge Ln

Palo Verde Dr

Rancho Dr

Solano Dr

Montebello Ave

Like Ave

San Miguel AveSan Juan Ave

Marshall AveMarshall Ave

Colter St

Campbell Ave

Glenrosa Ave

Turney Ave

Coolidge St

Hazelwood St

Meadowbrook Ave

Devonshire Ave

Fairmount Ave

Clarendon Ave

Weldon Ave

Whitton Ave

Mitchell Dr

Monterey Way

Greenfield Rd

Grand Canal Trail

Arizona Canal Trail

21st

St

22nd

St

21st

St

22nd

St

21st

St

22nd

St

21st

St

22nd

St

19th

St

19th

St

19th

St

18th

Pl

18th

St

Bethany Home Rd

Missouri Ave

Camelback Rd

Highland Ave

Indian School Rd

Osborn Rd

Lincoln Dr

Squaw Peak Dr

Piestewa Peak Park

Granada Park


School


Volume(veh/day)

Speed(MPH)15_< 20 25 30 35 40 45 50 55+

10K+

9K

8K

7K

6K

5K

4K

3K

2K

1K

<1K

ADDITIONAL CONSIDERATIONSTRUCK ROUTE OR >10% HEAVY VEHICLESHIGH TURNOVER PARALLEL PARKINGUSE OBSERVED SPEED (IF AVAILABLE)

STEP TO NEXT PROTECTION LEVELSEPARATED BICYCLE FACILITY PREFERRED (BUFFER OPTIONAL)OTHERWISE USE DESIGN OR POSTED SPEED

PHYSICALLY SEPARATED FACILITY

MIXED TRAFFIC OR SHARROW

WIDE BIKE LANE (BUFFER PREFERRED)

WIDE BIKE LANE (BUFFER OPTIONAL)

PHYSICALLY SEPARATED FACILITY OR BIKE LANE WITH BUFFER

Bicycle Facility Type for Interested but Concerned Bicyclists

85th % Speeds and Traffic Volumes

Volume Distribution by Speed between Camelback Rd and Colter St

85th Percentile Speed41 MPH


Posted Speed 35 MPH

Traffi

c Vo

lum

e

Speed (MPH)

E CAMPBELL AVE &E HIGHLAND AVE

E HIGHLAND AVE &E CAMELBACK RD

E CAMELBACK RD& E COLTER ST

10,260

21,020

10,000

0

5000

10000

15000

20000

25000




0

500

1000

1500

2000

2500

3000

3500

4000

4500

0 0.5 1

Mile North

Study CorridorBike LaneMulti-use Path / TrailBike Route (Shared Lanes)

20th Street Pedestrian and Bicycle Facilities Improvements

Existing Conditions



Missouri Avenue at 20th Street

Only vehicle counts were available (count date 10/15/2015)

941

50

432

343

AM Peak 07:15

1119

244

86 29PHF:

0.8725

16

859

5

361313

43

184

69

102

33 56 13 N

324

1252

505

108

83412

204

65

20 37 8

348 58 85

491

PM Peak 16:30

PHF: 0.9772

646

30

20

987884

N



Camelback Road at 20th Street

Pedestrian Counts

Bicycle Counts

Vehicle Turning Movements Count

2 0 5 0Ped Bike Ped Bike

4 Ped Ped 40 Bike Bike 06 Ped Ped 40 Bike Bike 1

Ped Bike Ped Bike2 0 5 0

AM Peak: 07:30

7

10 9

7

N

AM Peak: 07:30

2 1

1 1 0

1 0

0

0

0 0

0 0

0 0

0 1 0PHF:

0.7500 1 1

NNNN

196 183 208PHF:

0.9664 598 587

1009 29

877

1899

24 772

1675 76

200 2038

AM Peak: 07:30

518 236

41 322 155 NNNN



Camelback Road at 20th Street

Pedestrian Counts

Bicycle Counts





19

PM Peak: 17:00

13

11 11

N

PM Peak: 17:00

0 2

0 0 0

0 0

0

0

0 0

0 0

0 0

0 2 0PHF:

0.5000 0 2

NNNN

307 410 192PHF:

0.9627 702 909

2044 106

1919

1476

58 1633

1166 180

252 1432

PM Peak: 17:00

448 574

104 270 74 NNNN



Highland Avenue at 20th Street

Pedestrian Counts

Bicycle Counts





AM Peak: 07:30

8

11 7

9

N

AM Peak: 07:30

2 0

0 2 0

0 0

0

0

0 0

0 0

0 0

0 0 0PHF:

0.5000 2 0

NNNN

133 311 69PHF:

0.9243 354 513

685 60

482

1317

227 388

1024 34

66 1269

AM Peak: 07:30

594 598

164 254 176 NNNN



Highland Avenue at 20th Street

Pedestrian Counts

Bicycle Counts





6

PM Peak: 16:45

13

13 7

N

PM Peak: 16:45

2 0

0 2 0

0 0

0

0

0 0

0 0

0 0

0 0 0PHF:

0.5000 2 0

NNNN

235 517 48PHF:

0.9558 445 800

1523 163

1280

551

191 1053

306 64

54 514

PM Peak: 16:45

722 871

235 327 160 NNNN



Campbell Avenue at 20th Street

Pedestrian Counts

Bicycle Counts





4

AM Peak: 07:15

40

10 6

N

AM Peak: 07:15

2 3

0 2 0

2 1

3

0

0 2

0 0

0 0

0 2 0

2 2

NNNN

AM Peak: 07:15

402 364

10 220 172

23 126

283

32

9 11

11 146

12 298

2 229 115PHF:

0.8978 378 346

NNNN



Campbell Avenue at 20th Street

Pedestrian Counts

Bicycle Counts





1

PM Peak: 17:00

2

2 1

N

PM Peak: 17:00

2 1

0 2 0

1 0

1

1

0 1

1 0

0 1

0 1 0

2 1

NNNN

PM Peak: 17:00

458 689

14 330 114

35 195

277

26

12 9

5 73

9 200

12 482 81PHF:

0.9766 412 575

NNNN



Indian School Road at 20th Street

Pedestrian Counts

Bicycle Counts





AM Peak: 07:15

4

3 3

3

N

AM Peak: 07:15

1 0

0 1 0

0 0

0

0

0 0

0 0

0 0

0 0 0PHF:

0.2500 1 0

NNNN

77 147 57PHF:

0.9536 360 281

1782 27

1610

1464

131 1530

1244 53

89 1352

AM Peak: 07:15

444 305

175 218 51 NNNN



Indian School Road at 20th Street

Pedestrian Counts

Bicycle Counts





3

PM Peak: 16:45

5

10 3

N

0 2 0PHF:

0.5000 0 2

0 0

0

0

0 0

0 0

0 0

PM Peak: 16:45

0 2

0 0 0 NNNN

PM Peak: 16:45

403 509

108 203 92

1849 64

1662

1721

90 1554

1571 43

60 1777

187 355 113PHF:

0.9730 306 655

NNNN



Osborn Road at 20th Street

Pedestrian Counts

Bicycle Counts





4

AM Peak: 07:15

2

2 6

N

0 0 0PHF:

0.2500 1 0

0 0

0

0

0 0

0 0

0 0

AM Peak: 07:15

1 0

0 1 0 NNNN

AM Peak: 07:15

321 266

143 144 34

966 26

832

660

103 729

470 77

87 534

94 137 30PHF:

0.8924 308 261

NNNN



Osborn Road at 20th Street

Pedestrian Counts

Bicycle Counts





5

PM Peak: 16:30

6

11 6

N

0 0 0PHF:

0.2500 1 0

0 0

0

0

0 0

0 0

0 0

PM Peak: 16:30

1 0

0 1 0 NNNN

PM Peak: 16:30

316 535

146 117 53

1203 53

1028

1037

172 934

775 41

90 895

123 310 67PHF:

0.9655 248 500

NNNN



CRASH DATA SUMMARY City of Phoenix provided crash data along 20th Street between 2011 and 2015. A total of 23 pedestrian and bicycle related crashes were recorded during those five years, four of which were serious injuries and one fatality. The fatal crash took place at the intersection of 20th Street and Camelback Road in 2013, when a car failed to yield the right-of-way and struck a pedestrian.

Serious injury crashed took place at the intersections with Osborn Road, Indian School Road, Highland Avenue, and Camelback Road.

The majority of crashes involving pedestrians and cyclists, 10 out of 23, were due to failure to yield by vehicles.

Overall, 368 crashes were recorded along the study corridor. The following chart indicates the main causes of crashes.

0102030405060708090

100

Total

1

Ped and bike crashes

6

6

8

1

1

#



STREET GEOMETRIC CHARACTERISTICS Existing street geometric characteristics are summarized in Table 2 below.

Table 2 Roadway Segment Geometric Characteristics

Roadway Segment # of Vehicle Lanes

Speed Limit (mph) Lighting Sidewalks Bicycle

Lanes On-Street

Parking

Glendale Ave – Squaw Peak Dr to 20th St 6 Lanes1 40 Yes4 Yes None None

Ocotillo Rd – 20th St to Lincoln Dr 2 Lanes 25 Yes Yes No Yes

Glendale Ave to Maryland Ave 2 Lanes 25 Partial3 Partial5 None Yes

Maryland Ave – Between 20th St 3 Lanes2 25 Yes Partial6 South Side None

North of Claremont St to Bethany Home Rd 2 Lanes 30 None None None None

Bethany Home Rd to Missouri Ave 2 Lanes 30 West Side None Yes None

Missouri Ave to Camelback Road 2 Lanes 35 West Side Yes Yes None

Camelback Road to Highland Ave 6 Lanes 35 West Side Yes Yes None

Highland Ave to Campbell Ave 3 Lanes 30 West Side Yes Yes None

Campbell Ave to Indian School Rd 2 Lanes 30 Yes Yes Yes None

Indian School Rd to Whitton Ave 2 Lanes 35 West Side Yes Yes None

Whitton Ave to Grand Canal Trail 2 Lanes 35 Yes Yes None None

Notes: 1Includes a Two-Way Left-Turn lane (TWLT) and a residential access frontage road on the south side 2Includes an Eastbound Left-Turn lane 3Lighting is present between Glendale Ave and Ocotillo Rd 4North lighting west of 22nd St, south lighting east of 22nd St 5No sidewalk on west side south of Ocotillo Rd for 600 feet 6No sidewalk along north side of bridge

Sidewalk construction along the study corridor features an older design which is not compliant with current Access Board Public Rights-of-Way Accessibility Guidelines (PROWAG) at residential and commercial driveways. This old design does not feature a flat pedestrian apron around the driveway ramp; however, they can be retrofitted per the City of Phoenix Standard Construction Detail P1255-3.

Overall, pedestrian access ramps along the corridor appear to have PROWAG compliant slopes and resting areas; however, the majority lack truncated dome pads at the edge of the roadway. KAI staff observed pedestrian and bicycle usage along the corridor and visually inspected the state of pedestrian facilities on January 26, 2017. The following curb return locations are possible candidates for replacement or upgrade to meet PROWAG:

� SE corner at Ocotillo Rd and 20th St

� NW & NE corners at Maryland Ave and 20th St

� All corners at Missouri Ave

� NE & SE corners of Glenrosa Ave

� NW corner of Devonshire Ave

The following exhibits show graphical representations of street cross sections along the study corridor.

North

0 1,000 2,000

Feet

Study Corridor

20th Street Pedestrian and Bicycle Facilities ImprovementsMaryland Ave to Glendale Ave + Glendale Ave from 20th St to Squaw Peak Dr

Existing Cross-Sections

Glendale Ave

Maryland Ave

Flynn Ln

Lamar Rd

Ocotillo Rd

Claremont St

Arizona Canal Trail

21st

St

22nd

St

21st

St

22nd

St

20th

St

Berridge Ln

Palo Verde Dr

Rancho Dr

Solano Dr

Montebello Ave

San Miguel Ave

San Juan Ave

Bethany Home Rd

Lincoln Dr

Granada Park

Glendale Ave

Maryland Ave

Flynn Ln

Lamar Rd

Ocotillo Rd

Claremont St

Arizona Canal Trail

21st

St

22nd

St

21st

St

22nd

St

20th

St

Berridge Ln

Palo Verde Dr

Rancho Dr

Solano Dr

Montebello Ave

San Miguel Ave

San Juan Ave

Bethany Home Rd

Lincoln Dr

Granada Park

25

25

40

30

North

0 1,000 2,000

Feet

Study Corridor

20th Street Pedestrian and Bicycle Facilities ImprovementsBethany Home Rd to Maryland Ave


Glendale Ave

Maryland Ave

Flynn Ln

Lamar Rd

Ocotillo Rd

Claremont St

Arizona Canal Trail

21st

St

22nd

St

21st

St

22nd

St

20th

St

Berridge Ln

Palo Verde Dr

Rancho Dr

Solano Dr

Montebello Ave

San Miguel Ave

San Juan Ave

Bethany Home Rd

Lincoln Dr

Granada Park

Glendale Ave

Maryland Ave

Flynn Ln

Lamar Rd

Ocotillo Rd

Claremont St

Arizona Canal Trail

21st

St

22nd

St

21st

St

22nd

St

20th

St

Berridge Ln

Palo Verde Dr

Rancho Dr

Solano Dr

Montebello Ave

San Miguel Ave

San Juan Ave

Bethany Home Rd

Lincoln Dr

Granada Park

2525

40

30

North

0 1,000 2,000

Feet

Study Corridor

20th Street Pedestrian and Bicycle Facilities ImprovementsHighland Ave to Bethany Home Rd


20th

St

Berridge Ln

Palo Verde Dr

Rancho Dr

Solano Dr

Montebello Ave

Like Ave

San Miguel Ave

San Juan Ave

Marshall Ave

Marshall Ave

Colter St

Orange Dr

Medlock Dr

21st

St

22nd

St

18th

Pl

Bethany Home Rd

Camelback Rd

Coolidge St

Hazelwood St

Meadowbrook AveMadison

Camelview Elementary

School

20th

St

Berridge Ln

Palo Verde Dr

Rancho Dr

Solano Dr

Montebello Ave

Like Ave

San Miguel Ave

San Juan Ave

Marshall Ave

Marshall Ave

Colter St

Orange Dr

Medlock Dr

21st

St

22nd

St

18th

Pl

18th

St

Bethany Home Rd

Missouri Ave

Camelback Rd

Coolidge St

Hazelwood St

Meadowbrook Ave

Highland Ave


School

eeeevvAvAAvAAAAAAddddnnnaalhhhggHigHHH

evevvAAAAiruuoosososssMisMMM

30

11888ttthh

SSSSttt

18th

St

35

0 1,000 2,000

Feet North

Study Corridor

20th Street Pedestrian and Bicycle Facilities ImprovementsGrand Canal to Highland Ave


51

20th

St

19th

St

19th

Pl

19th

Pl

18th

Pl

18th

St

Campbell Ave

Glenrosa Ave

Turney Ave

Coolidge St

Hazelwood St

Meadowbrook Ave

Fairmount Ave

Clarendon Ave

Weldon Ave

Whitton Ave

Mitchell Dr

Monterey Way

Grand Canal Trail

21st

St

22nd

St

21st

St

22nd

St

Indian School Rd

Osborn Rd


School


51

20th

St

19th

St

19th

Pl

19th

Pl

18th

Pl

18th

St

Campbell Ave

Glenrosa Ave

Turney Ave

Coolidge St

Hazelwood St

Meadowbrook Ave

Fairmount Ave

Clarendon Ave

Weldon Ave

Whitton Ave

Mitchell Dr

Monterey Way

Grand Canal Trail

21st

St

22nd

St

21st

St

22nd

St

Highland Ave

Indian School Rd

Osborn Rd


School


eevvevvvAAAAddandhlaggHigHH

30

35

Documents

SUMMARY OF FINDINGS - Phoenix, Arizona 20th...20th Street Bicycle and Pedestrian Facilities Improvement Project #:20486 June 28, 2017 Page 3 Kittelson & Associates, Inc. Phoenix, Arizona