Vistas of C P1-AG 991026 AGENDA R_E-.UEST FORM
The City V~Ith A .Beautiful ~,~re
~ ~ CITY COUNCIL MEETING: October 26, 1999 ITEM# ~
ITEM CAPTION:
PUBLIC HEARING (CONTINUED): Consider approval of Case No. PD-149R, Vistas of Coppell, Phase
IA, zoning change for property zoned PD149-SF-7 (Planned Development 149, Single Family-7) by
amending the planned development conditions as they apply to Lot 33, Block N, to permit a reduction in the
side fence setback line from 15 feet to the street fight-of-way for property located at 518 Waterview Drive.
SUBMITTED BY: Gary L. Sieb
TITLE: Director of Planning and Community Services
STAFF COMMENTS:
Date of P&Z Meeting: August 19, 1999
Decision of P&Z Commission: Denied (7-0) with Commissioners Nesbit, McGahey, Kittrell, Lowry,
McCaffrey, Halsey and Stewart voting in favor of denial. None opposed.
Staff recommends denial of this request.
This case has been appealed to Council by Mr. Hu. Please see his letters dated August 22 and August 28,
1999, and October 11, 1999, attached.
On October 12m Council voted to continue the Public Hearing to October 26tn.
A 3/4 vote of Council is needed to overturn the P&Z Commission ruling.
DIR. INITIALS:. FIN. REVIEW: '~ CITY MANAGER REVIEW
Agenda Request Form ~X/Revised 2/99 Document Name: ~PD149Rv
(**~t~,- o,~ C'oppcll. PO ~0~ 478
, ( ~'l'l,cJl. TX 75010
Jamc~ Hu ~ IJ~glir, g Com~Jc Zhang _..
C~,ppe;l. '1 X 75c~ ! 9
214-50~ 4554 (M)
1 ~-.. Pf) members and City Council members,
',Vc'd It~.c [o d~lAv ~lz¢ lli¢¢llflg wilh Councit about Case No ~D-14~. VISTAS O~
~ 'OPPEL~. P~AS~ IA Thanks a Io[ Cot your ~nsidera[ion
tl vo,: imvc an~ ques~iol~s Please ~eel free [o con[act me at (214) 505-4554 or
2~ Par~ay Blvd.
Coppeil, TX 75019
James Hu & Lingling
S 18 Wate~iew Dr.
Coppell, TX 75019
Tel: 972 459-5888
Dear PD members and City Council members.
We'd like to delay the meeting about Case No. _PD-149R, VISTAS OF
COPPELL,PHASE lA on September 14, 1999 to October 12, 1999.
If you have any questions Please feel free to contact me at (214)505-4554 or
(972)4595888.
Respectfully yours
Lingling Zhang
James Hu
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AUG'23--9'9 MOH 18:85 PM ~LLO! .... I ~ 4595888 _.~. 81
Aug 22,1999
City of Coppell, PO BOX
255 Parkway Blvd.
Coppell, TX 75019
/ames Hu & Lingling Zhang
518 Waterview Dr.
Coppell, TX 75019
Tel: 972 45%5888 (ti)
972 894-5628 (W)
Dear PD members and City Council members,
We want to appeal the decision to Council about Case No. _PD-149, VISTAS OF
COPPELL,PHASE lA.
If you have any questions PleaSe feel free to contact me at (214)505-4554 or
(972)4595888.
Respectfully yours
Lingling Zhang
lames Hu
CITY OF COPPELL
PLA.~ING DEPARTMENT
STAFF REPORT
CASE NO.: PD-149R, Vistas of Copoell, Phase lA
P & Z HEARING DATE: August 19, 1999
C.C. HEARING DATE: September 14, 1999
LOCATION: 518 Waterview Drive.
SIZE OF AREA: Approximately 7,275 square feet
CURRENT ZONING: PD (Planned Development)
REQUEST: Amend the PD conditions as they apply to Lot 33, Block N to allow
a reduction in the side fence setback line from 15' to the street right-
of-way.
APPLICANT: Jmes Hu
518 Wate~'iew Drive
Coppell. TX 75019
(972) 459-5888
FAX: (972) 459-5888
HISTORY: ]'he City of Coppell annexed portions of the Vista Ridge Business
Park in 1986 and 1990. On February 15. 1996, the Planning and
Zoning Commission disapproved a preliminary plat and
subsequently on March 21. 1996, they approved the zoning, as well
as a preliminary, plat. City Council approved the zoning on May 14.
1996 and the preliminar)' plat on September 10. 1996. Ciw Council
approved the final plat on January 14. 1997.
TRANSPORTATION: The S.H. Bypass will be built to freeway standards with access roads
in 450 feet of r.o.w.
SURROL-.-NDING LAND USE & ZONING:
North- vacant: City of Lewisville
South - vacant; Denton Creek: "TC" To~vn Center
East - vacant; "HC" Highway Commercial
West - Single thrnily residential: "PD-SF-7" Planned Development.
Single Family-7
Item e 8
COMPREHENSB/'E PLAN: The Comprehensive Plan shows the property as suitable tbr
medium densit-,' residential uses.
DISCUSSION: This homeowner is claiming no knowledge of the procedures and
regulations governing fences, inadvertently built a wooden fence without a
fence permit. After the fence was built, an inspector from the city gave
him notice that the fence was in violation of ciD· ordinances. The only
recourse the applicant has at this time is to seek from the Planning and
Zoning Commission and City Council a waiver to the fence line setback as
it pertains to this lot.
Currently, the 6-foot high wooden fence is located on the property line
along Bella Vista Drive. At its present location the fence is in violation of
the plat, the ordinance governing this particular planned development, as
well as the homeowners' covenants, deeds, and restrictions. The plat
clearly shows a 15' building line and fence line on this specific lot. One of
the conditions enumerated in the PD ordinance reads "fencing of side
y.'ards adjacent to proposed streets shall have a 15' setback". Lastly'. the
homeowners' deed restrictions state "no fence, wall or hedge be erected or
maintained on any lot nearer to the street than the building setback lines
for the front Rd side yards". In addition, to violating a number of rules
and regulations, the fence at its current location obstructs the sight line at
the intersection of the alley and Bella Vista Drive. From a traffic safety
perspective the Engineering staff can not support maintaining the fence at
this location.
Planning staff has a hard time supporting this request. Street-side
appearance is one of the reasons for requiring a 15' building line and fence
setback on corner lots. Bella Vista Drive serves as the ento' to the entire
neighborhood from the north, and Waterview Drive serves as the main
east/west arterial for the subdivision. Houses face both streets. The
presence of the fence at its current location encroaches on public open
space, and also obstructs site lines at this intersection. The encroachment
of fences into public open spaces, as well as neighbors' front yards, has
been a planning concern especially in older subdivisions. In the last 2
years, staff has attempted to ensure that the designs of the nexver
subdivisions adequately address fence locations.
RI£COMMENDATION TO THE PLANNING AND ZONING COMMISSION'
Staff is sensitive to the applicant's personal circumstances and his need to
retain as much of the side and rear yards for the cultivation of medicinal
herbs. However. staff is uncomfortable recommending the reduction of
the fence restrictions from both a traffic safety and urban design
perspective. \Ve suggest that the fence be moved back to observe the 15'
Item = 8
building line and fence line. This relocation would still allow the applicant
use of his yard for medicinal herbs and would certainly improve the views
along this street corridor.
ALTERNATIVES: 1) Recommend approval of the request.
2) Recommend disapproval of the request
3) Recommend modification of the request
4) Take under advisement for reconsideration at a later date.
ATTACHMENTS: 1) Zoning Application
2) Final Plat of Vistas of Coppell Phase lA
3) Lot Site Plan with current fence location
4) Photographs of current fence and neighbor's fence
5) Copy of letter dated June 28. 1999
6) Departmental Comments
Item a 8
~, ,ir
ENGINEERING COMMENTS
ITEM: PD-149R, Vistas of Coppell, Phase IA, a zoning change for property zoned
PD149-SF- 7 (Planned Development 149, Single Family- 7) by amending the
planned development conditions as they apply to Lot 33, Block N, to permit a
reduction in the side fence setback line front 15 feet to 5 feet front a street
right-of-way, for property located at 518 Waterview Drive, at the request of
James Hu and LingLing Zhang.
DRC DA TE: July 29, 1999 and August 5, 1999
CONTA CT: .~like Martin, P.E., Assistant City Engineer (9 72-304-3679)
PRELL. VI'INA R Y RE VISED
AFTER P&Z
1. Per the Cio,' Subdivision Ordinance, the fence as located does not allow for adequate sight
distance along Bella Vista Drive from the alley.
Zoning Application
City of Coppell
Pl~nnlng Deparmxmt .
255 Parkway Blvd. ~ ",s~w:l'~ev:--'
Coppell, TX 75019 ~o.~ ~ & Z '~
(972) 304-3678/Fax: (972) 304-3570 ~
Telephone Nmber: C~%~) ~ --~ F~ Nmber: Cq%~) ~- 5~
Zoning Requested:
Total Number of Acres:
Property Location:
Reason(s) for Zoning Change:
Note:
Applicant is responsible for erecting, maintaining and removing a sign to notify the public of the pending
zoning application. The sign shall be posted mu (10) days prior to the Planning Commission meeting and
shall be removed after the City Council's approval or disapproval of the application.
Failure to erect the sign at least ten (10) days prior to the Planning Commission hearing will result in
postponement of the zoning case until this condition is met.
A deposit in the mount of one hundred ($I00.00) will be required of the applicant when he or she
requests a sign. The deposit will be refunded by mail if the sign is returned in good condition to the
Planning Department.
Name of Representative:
Owner's Signature: '-"~'x..~'t..-x Date:
June 28,1999
City of Coppell
255 Parkway Blvd.
Coppeli, TX 75019
· ' James Hu & Lingling Zhang
518 Waterview Dr.
Coppell, TX 75019
Tel: 972 459-5888 (FI)
972 894-5628 (W)
Dear Mayor Sheehan and City Council members,
I'm a new homeowner in the city of coppell, and I just built a new fence in my house.
The fence was built to the same specification as the fences of my neighbors.
After the fence was built, an inspector from the city gave me notice that the fence was not
built in accordance to city ordinance. I had a conversation with the inspector (Michael
Hodge), and I was informed that I need it a permit and a waiver. The permit I got dated
on June 21 1999; the waiver (15-feet fence line limit) is the reason for this letter. That is,
I am asking the council to approve a waiver for the fence so that the fence will remain
uniform as my neighbors.
The reasons I am asking for this waiver is due to the following facts:
I) Every house with a fence in BellaVista Dr. has a fence with the same
specifications as ~ine. If the city is going to enforce the ordinance, it will have to
do so homogeneously; i.e., unequal enforcement of the law is not acceptable to
me. IfI have to rebuild the fence to meet the ordinance, I will demand that every
house meet the ordinance with no exceptions. (See attached picture)
2) If I have to change the fence to meet the ordinance, then the landscaping oft. he
street will not be uniform; my house being the odd looking house in such
street.(See attached picture)
3) To build the fence according to the ordinance, the fence will have to be built right
against the west wall of my house; not a possible or desirable thing to do. In other
words, it is impossible to build a fence over my house comer. (See attached lots
design )
4) It is no humanity, because my family planted some foreign medicine in my yard
to save very-ill family member.
Due to all of above reason I strongly request this waiver, it is good ['or community's
landscaping, it is good for the city, it is good for my entire family member.
We look forward to hearing from you and setup appointment with you to discuss this
issue.
Respectfully yours
James Hu
Lingling Zhang
i~v~w i COMtd~#l
10-05-9 8P01: 18
BUILDING PERMIT APPLICATION
Print or Type in a Clear, Le§ible Manner
RCVD
Job Address:
Lot: ~ ~ Block~,~
Subdivision:
~ j~- &[~p~...LLPhase or Section Number:
Owner
Address:
Phone #:
Contractor: -~- ~t~
Description of Work to be Done
,.9I
Class of Work:
Address: Ig 0 ~ ~c/(7
~'New [] Addition
Phone ~/~ -7'
[] Alteration [] Repair
[] Demolition
Area of Building in Square Feet
First Floor Go ~
Second Floor
Garage
Other
NOTICE
This permit becomes null and vokl if work or construction authorized is not commenced
within 180 days. or construction on work is suspended or abandoned for a period of 180 days
at any time after work is commenced.
I hereby certify that I have read and examined this application and know the same to be true
and correct. All provisions of laws and ordinances governing this type of work will be
complied with whether specified hereto or not. Thc granting of a permit docs not presume lo
give authority to violate or cancel the proviskms of any other federal, state or local law
regulaling"~onstruction of tine perf'ormance of construction.
/ ~/~/.t' 4 '0 '
Signature o~ofitntctor O; Aulhorized Agent Print Name
Electrical Contractor Plumbing Contractor Mechanical Contractor
Comments:
Value of Work ~ ~ ~-.
to be Performed
GRAY AREA FOR OFFICE USE ONLY
Occupancy ClaSsification:'?:'~":%?' 'i''
Date: ,~/~"-//f
FPMC - 1 (4~94)
BUILDING INSPECTION - WHITE, APPRAISAL - YELLOW, CUSTOMER - PINK
--"'-"~ '" - PLAN
* ' '*~'~;~ VISTAS OF COPPELL
% ~ D, ALLEY
p~.. ~ / '~ '
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-- ",'.- ......
~ A T E R VI E ~ DRIVE
The City With A Beauliful Future
BUILDING PERMIT APPLICATION
Print or Type in a Clear, Legible Manner
.Job Address:
Lot: Block:
Subdivision:
Phase or Section Number:
Owner TtSL}~
Contractor:
Address:
Phone #:
Address:
Phone #:
Description of Work to be Done
Class of Work: [~New
[] Addition [] Alteration [] Repair [] Demolition
Area of Building in Square Feet
First Floor Garage
Second Floor Other
NOTICE
This permit becomes null and void if work or construction autl~orized is not commenced
within 180 days, or construction on work is suspended or abandoned for a period of 180 days
at any time after work is commenced.
I hereby certify that I have read and examined this application and know the same to be true
and correct, All provisions of laws and ordinances governing this type of work will be
complied with whether specified hereto or uot. The granting of a permit does not presnme lo
give authority to violate or cancel the provisions of any other federal, slale or local htw
Value of Work
to be Performed
Occupancy Classification: ]
Zoning District:
By:.~() Date: ~ ~ / ? ~ 4
ApPrOved
Comments· .~ J_ ~ r'" ~{~//<~Ld'_ ,// ,. ~'~
' 'i- -' " f_-' '
regulating construction of the perforumnce of construction.
'gn~re of Contractor or Authorized Agent
Electrical Contractor Plumbing Contractor
Print Name
Mechanical Contractor
FPMC - 1 (4/94)
BUILDING INSPECTION - WI'HTE, APPRAISAL - YELLOW, CUSTOMER - PINK
NO._~{~_~ ..... , O0 HEREBY CERTtFY THAT ON __~'~_'~
VERIFiCATiONS WERE MADE ON THE HORIZONTAL LAY-OUT OF
PROPOSED RES IDENCE AT THE STREET' AODRE~5 ~ ~,~ '~, / ~ ' '"'~"
FIELD I'1EASUREMENTS ARE AS SHOgN HEREON~ 1E~
I
~ /'" · ALLEY
5' U.E. -
/... _
/
CONC WALK
AN ORDINANCE OF THE CITY OF COPPELL, TEXAS
OR INANCENO. e l. oo IS o
AN ORDINANCE OF THE CITY OF COPPELL, TEXAS,
AMENDING THE COMPREHENSIVE ZONING ORDINANCE AND MAP
OF THE CITY OF COPPELL, TEXAS~ AS HERETOFORE AMENDED, BY
GRANTING A CHANGE IN ZONING FROM "HC" (HIGHWAY
COMMERCIAL) AND MF-2 (MULTI FAMII.Y-2) TO "PD-SF-7'
(PLANNED DEVELOPMENT, SINGLE FAMILY-7) TO ALLOW THE
DEVELOPMENT OF SINGLE-.FAMII.Y RESIDENTIAL USES ON 62.231
ACRES OF LAND LOCATED ON THE EAST SIDE OF DENTON TAP
ROAD, SOUTH OF STATE HIGHWAY 121 BYPASS, AND BEING MORE
PARTICULARLY DESCRIBED IN EXHIBIT "A" ATTACHED HERETO;
PROVIDING FOR DEVELOPMENT CONDITIONS; PROVIDING FOR
THE APPROVAL OF THE SITE PLANS, LANDSCAPE PLAN, AND
DEVELOPMENT STANDARDS ATTACHED HERETO AS EXHIBITS "B",
"C", "D" AND "E"; PROVIDING A REPEALING CLAUSE; PROVIDING A
SEVERABILITY CLAUSE; PROVIDING A SAVINGS CLAUSE;
PROVIDING A PENALTY OF FINE NOT TO EXCEED THE SUM OF
TWO THOUSAND DOLLARS ($2,000.00) FOR EACH OFFENSE; AND
PROVIDING AN EFFECTIVE DATE.
WHEREAS, the City Planning and Zoning Commission and the governing body of 'aha
City of Coppell, Texas, in compliance with the laws of the State of Texas and pursuant to the
Comprehensive Zoning Ordinance of the City of Coppell, have given requisite notices by
publication and otherwise, and after holding due hearings and affording a full and fair hearing to all
property owners generally, and to all persons interested and situated in the affected area and in the
vicinity thereof, the said governing body is of the opinion that Zoning Application No. PD-149
should be approved, and in the exercise of legislative discretion have concluded that the
Comprehensive Zoning Ordinance and Map should be amended.
NOW, THEREFORE, BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY
OF COPPELL, TEXAS:
SECTION 1. That the Comprehensive Zoning Ordinance and Map of the City of Coppell,
Texas, duly passed by the governing body of the City of Coppell, Texas, as heretofore amended, be
and the same is hereby amended to grant a change in zoning'from "HC" (Highway Commercial)
and MF-2 (Multi Family-2) to "PD-SF-7" (Planned Development, Single Family-7) to allow the
SS262
1
development of single-family residential uses on 62.231 acres of land, located on the east side of
Denton Tap Road, south of State Highway 121 Bypass, and being more particularly described in
Exhibit "A" attached hereto and made a part hereof for all purposes.
SECTION 2. That the property shall be developed and used only in accordance with the
Site Plans, Exhibit B and Exhibit C, Landscape Plan, Exhibit D, and Development Standards,
Exhibit E, and the following special conditions for development:
(A) The minimum setbacks be varied; i.e. 20, 22~, or 25 feet from the front property
line, with no fewer than 25% of the total number of homes in any one of these
positions;
(B) Fencing of side yards adjacent to proposed streets shall have a fifteen foot (15')
setback, and;
(C) Fitty foot (50') setback shall be provided adjacent to State Highway 121 with a six
foot (6') screening wall on top of three foot (3') high earthen berm.
(D) Minimum finished floor shall be two feet above existing 100 yr. floodplain
elevation or one foot (1 ') above ultimate;
(E) Deletion of alleys for lots which back to open space, park land and landscape areas;
(F) Block length shall exceed 1200 feet on Block P and Block M of Phase 1;
(G) A deceleration lane from Vista Ridge Boulevard will be installed west of Bella
Vista Drive of Phase 1,100 feet in length with a 100 foot tramition;
(H) A 10'xl0' comer clip will be provided at all street intersections;
(I) All rear yards will be screened from view when adjacent to roadways;
(J) Lot 1, Block L, and Lot 1, Block M of Phase 1, will maintain an eight foot
SS262
2
building setbr 'k from the Landscape easement;
(K) Lots adjacent to State Highway 121 frontage road are restricted to one story
structures;
(L) A deceleration lane from Vista Ridge Boulevard will be installed west of Lyndsie
Drive of Phase 2, 100 feet in length with a 100 foot transition;
Lot 1, Block F of Phase 2 will maintain an eight foot (8') building setback from the
Landscape easement.
SECTION 3. That the Site Plans, Landscape .Plan, and Development Standards, attached
hereto as Exhibits "B", "C", "D" and "E", respectively, and made a part hereof for all purposes, is
hereby, approved.
SECTION 4. That the above property shall be used only in the manner and for the purpose
provided for by the Comprehensive Zoning Ordinance of the City of Coppell, as heretofore
amended, and as amended herein.
SECTION 5. That all provisions of the Comprehensive Zoning Ordinance of the City of
Coppell, Texas, in conflict with the provisions of this ordinance be, and the same are hereby,
repealed, and all other provisions not in conflict with the provisions of this ordinance shall remain
in full force and effect.
SECTION 6. That should any sentence, paragraph, subdivision, clause, phrase or section
of this ordinance be adjudged or held to be unconstitutional, illegal or invalid, the same shall not
affect the validity of this ordinance as a whole, or any part or provision thereof other than the part
so decided to be unconstitutional, illegal or invalid, and shall not affect the validity of the
Comprehensive Zoning Ordinance as a whole.
SS262
3
SECTION 7. An offense committed before the effective date of this ordinance is governed
by prior law and the provisions of the Comprehensive Zoning Ordinance, as amended, in effect
when the offense was committed and the former law is continued in effect for this purpose.
SECTION 8. That any person, firm or corporation violating any of the provisions or terms
of this ordinance shall be subject to the same penalty as provided for in the Comprehensive Zoning
Ordinance of the City of Coppell, as heretofore amended, and upon conviction shall be punished by
a fine not to exceed the sum of Two Thousand Dollars ($2,000.00) for each offense; and each and
every day such violation shall continue shall be deemed to constitute a separate offense.
SECTION 9. That this ordinance shall take effect immediately from and after its passage
and the publication of its caption, as the law and charter in such cases provide.
DULY PASSED by the City Council of the City of Coppell, Texas, this the ~ --day
of ~v,.o.. ,1996.
APPROVED:
TOM MORTON, MAYOR
ATTEST:
APPROVED AS TO FORM:
·
(PGS/ttl 6/24/96)
SS262
4
~PUC^~L~// /
! ~ AREA ~mlN MIN. 200' ~S~IU~ mlANGLE ~
/ ~ ~EA ~IN ~C~ ~SIBIU~ ~IAN~
/ ~ ~EA ~DE BUI~INO ~ ~N~ UNE
PER ~N~ {
SIGHT DISTANCE / ACCELERATION ANALYSIS - Hu Fence Case
Acceleration from Intersection II Deceleration to Alley1
(ft) (mph) (mph) (fpss) (fi) (mph)
90 26.45 10 7.2 60 12.68
85 25~82 10 7.2 65 13.53
80 25.16 10 7.2 70 14.37
75 24.49 10 7.2 75 15.18
70 23,80 10 7.2 80 15,98
65 23.09 10 7.2 85 16i76
60 22.36 10 7.2 90 17.53
55 21.60 10 7.2 95 18.28
50 20.81 10 7.2 100 19.01
45 20.00 10 7.2 105 19,74
40 19.15 10 7.2 110 20.45 "~ -
35 18.25 10 7.2 115 21.15
30 17.32 10 7.2 120 21.84
25 16.33 10 7.2 125 22.52
20 15.27 10 7.2 130 23.18
15 14.14 10 7.2 135 23.84
10 12.91 10 7.2 140 24.49
5 11.55 10 7.2 145 25.13
si~;
0 10.00 10 7.2 150 25.76 ~- to
II 2°°131.67
Existing
Sight
Distance
Distance
lersection
V(max) = maximum expected speed at given distance (d) from intersection, startin~ from 10 mph at corner
V(stop) = maximum speed a car can be traveling and still stop at given distance (SSD) from alley
a = acceleration rate, ITE Traffic Engineering Handbook, Table 2-7
SSD = Stopping Sight Distance, AASHTO Policy on Geometric Design of Highways and Streets
SIGHT DISTANCE / ACCELERATION ANALYSIS - Hu Fence Case
I Acceleration from Intersection II Deceleration to AlleYl
d V(max) Vo a SSD V(stop)
(ft) (mph) (mph) (fpss) (ft) (mph) Existing
90 26.45 10 7.2 60 12.68 ,-- Sight
85 25.82 10 7.2 65 13.53 Distance
80 25.16 10 7.2 70 14.37
75 24.49 10 7.2 75 15.18
70 23.80 10 7.2 80 15.98
65 23.09 10 7.2 85 16.76
60 22.36 10 7.2 90 17.53
55 21,60 10 7.2 95 18.28
50 20.81 10 7.2 100 19.01
45 20.00 10 7.2 105 19.74
40 19.15 10 7.2 110 20.45
35 18.25 10 7.2 115 21.15
30 17.32 10 7.2 120 21.84
25 16.33 10 7.2 125 22.52
20 15.27 10 7.2 130 23.18
15 14.14 10 7.2 135 23.84
10 12.91 10 7.2 140 24.49
5 11.55 10 7.2 145 25.13
Sight Distance
0 10.00 10 7.2 150 25.76 ~ to Intersection
II 2°°131-671
V(max) = maximum expected speed at given distance (d) from intersection, starting from 10 mph at corner
V(stop) = maximum speed a car can be traveling and still stop at given distance (SSD) from alley
a = acceleration rate, ITE Traffic Engineering Handbook, Table 2-7
SSD = Stopping Sight Distance, AASHTO Policy on Geometric Design of Highways and Streets