TRAFFIC IMPACT ANALYSIS
Klldey & Auocilltea
Landscape Architectsl Planners
1551 Forum Place
Suite 100A
West Palm Beach, Florida 33401
(407) 689-5522 · Fax: (407) 689-2592
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TRAFFIC IMP ACT ANALYSIS
TARA OAKS
Prepared for
Elie Berdougo
Prepared by
YVONNE ZIEL TRAFFIC CONSULTANTS, INC.
11440 86 STREET NORTH
WEST PALM BEACH, FLORIDA 33412
(561) 624-7262
April 26, 1998
TABLE OF CONTENTS
Page
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
EXISTING CONDITIONS ...............................................~........ 1
ASSURED CONSTRUCTION ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
TRIP GENERATION .......................................................... 4
TRIP DISTRIBUTION ......................................................... 4
FUTURE BACKGROUND TRAFFIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Growth Rate Analysis .................................................... 4
Major Projects .......................................................... 7
PERFORMANCE STANDARDS ANALYSIS ...................................... 7
Test One . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Driveway Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Test Two ............................................................. 11
CONCLUSION .............................................................. 11
APPENDIX A - GROWTH RATE ANALYSIS
i
--1
TABLE
1
2
3
4
5
6
T
LIST OF TABLES
TITLE PAGE
Existing (1997) Daily Traffic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Existing (1997) Peak Hour Traffic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Trip Generation Rates ..............................................5
Trip Generation ................................................... 5
Projected Daily (2000) Traffic Conditions .............................. 8
Projected Peak (2000) Hour Traffic Conditions .......................... 8
ii
FIGURES
1
2
3
4
-----,-
LIST OF FIGURES
TITLE
PAGE
Site Location Map .................................................2
Project Traffic Distribution .......................................... 6
Future (2000) Traffic Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Peak Hour Driveway Volumes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
iii
INTRODUCTION
Yvonne Ziel Traffic Consultants, Inc. was retained to prepare a Traffic Impact Analysis to assess the
traffic impact of a development proposed to include 192 multi-family units and a 20,000 square foot
church to be located along the east side of Knuth Road north of Woolbright Road, as shown on
Figure 1. Buildout of the development is anticipated to be in 2000. The site was previously vested
for 77 single-family units.
EXISTING CONDITIONS
Woolbright Road, the fIrst accessed link, is currently operating at Level of Service (LOS) B near the
site Table 1 shows the existing (1997) average daily traffic (ADT) conditions on the impact area
roadways and Table 2 shows the same information for the peak hour. The ADT volumes were
obtained from the Palm Beach County (PBC) 1997 Traffic Volumes Map provided by the PBC
Metropolitan Planning Organization (MPO). The peak hour volumes were determined by factoring
the daily volumes by 0.093.
ASSURED CONSTRUCTION
The Palm Beach County and Florida Department of Transportation Five- Year Road Program does
not include any widening projects.
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TABLE 1
TARA OAKS
EXISTING (1997) DAILY TRAFFIC CONDITIONS
26-Apr-98
11:46:10 AM 1997
#OF 110" ADT VIC 1997
ROADWAY LOCATION LANES CAP TRAFFIC RATIO LOS
WOOLBRIGHT RD 700' E of Lawrence Rd 4 31,100 17,713 0.57 B
WOOLBRIGHT RD East of Knuth Rd 4 31,1 00 17,713 0.57 B
TABLE 2
TARA OAKS
EXISTING (1997) PEAK HOUR TRAFFIC CONDITIONS
PEAK 1997
#OF LOS PEAK VIC
ROADWAY LOCATION LANES 110" HOUR RATIO LOS
WOOLBRIGHT RD 700' E of Lawrence Rd 4 2,890 1,647 0.57 B
WOOLBRIGHT RD East of Knuth Rd 4 2,890 1,647 0.57 B
-- -r--
TRIP GENERATION
Trip generation was estimated usmg the Institute of Transportation Engineers' (ITE), Trip
Generation, 5th Edition data. The trip generation rates used are shown in Table 3. Table 4 provides
the trips generated by the proposed project and the difference between the trips from the proposed
project and the vested trips. Trip generation resulted in 760 new daily trips, 48 AM peak hour and
46 PM peak hour trips. The anticipated ADT traffic translates into a radius of development influence
of one (1) mile.
TRIP DISTRIBUTION
_I
Trip distribution was based upon the previously approved traffic study. Figure 2 illustrates the
project percent of traffic on each link within the study area along with the number of trips and the
project percent of roadway capacity.
FUTURE BACKGROUND TRAFFIC
Growth Rate Analysis
Future background traffic was determined by applying growth rates to the existing 1997 Palm Beach
County ADT volumes. Three year historical traffic count data was obtained from Palm Beach
County. These data were compiled to calculate a growth rates for the links in the study area. The
growth rate analysis is included in Appendix A.
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Maj or Proj ects
A review of the Palm Beach County major project map indicates that none of the major projects
within the study area would reftect traffic of 10 percent or more of the threshold LOS liD" service
volume on the impact area roadway links by the build-out of this project.
PERFORMANCE STANDARDS ANALYSIS
Test One
~I
Project traffic was added to future background traffic and a Test One analysis of the study area was
conducted. Each roadway link was assessed according to Palm Beach County LOS standards. The
future background daily traffic totals are shown in Table 5; the peak hour volumes are shown in
Table 8. Figure 3 illustrates the future 2000 conditions on the roadways within the study area. The
analysis indicates that all of the significant links meet the LOS standards.
Driveway Analysis
Based on the projected site turning movements, a northbound right turn lane at the projects' northern
entrance along Knuth Road should be considered to accommodate the peak hour volumes. If
however, Knuth Road is extended to the north, this right turn lane would not be needed The
driveway peak hour turning movement diagram is included as Figure 4.
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LEGEND I
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2,896 I
L Tolal Daily Volume I
PM Peak Hour Volume I
AM Peak Hour Volume I
~ :~ YVONNE ZIEL
C TRAFFIC CONSULTANTS. INC.
/1.... :J TRAFAC ENGINEERING & PLANNING
114<10 16 S~l N., We.l Polm Beech, FL 33-412 (561)6247262
FIGURE 4
TARA OAKS
DRIVEWAY PEAK HOUR TURNING MOVEMENTS
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Test Two
There are no Test Two links within the study area.
CONCLUSION
This project meets the Palm Beach County-wide Traffic Performance standards and may be
approved.
11
APPENDIX A
GROWTH RATE ANALYSIS
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