TR9101-CN 901119Barton-Aschman Associates, Inc.
5485 Belt Line Road, Suite 199
Dallas, Texas 75240
USA
November 19, 1990
Ms. M. Shohre Daneshrnand, P.E.
Acting City Engineer
City of Coppell
P.O. Box 478
732 DeForest
Coppell, TX 75019
I~ ~,_, ~x~XX~':Pfone: (214)'991-1000
~x~'~'~'t'~:'~'- "~ Fax: (214)490-9261
~3j~Metro 263 9138
FILE COPY
RE:
Proposal for Traffic Signal Design and Inspection Services for the Intersection of Denton Tap Road
and Bethel Road
Dear Ms. Daneshmand:
Barton-Aschman Associates, inc. is pleased to submit this proposal to provide professional transportation engineering
services in connection with the design and inspection of a traffic signal at the intersection of Denton Tap Road and
Bethel Road in the City of Coppell. We have prepared a scope of services and fee estimate based on our meetings
on October 16 and November 16, 1990.
If accepted, this letter will become an agreement between the City of Coppell (City) and Barton-Aschman
Associates, [nc.. (BA) to provide the services outlined in the Scope of Services presented below:
SCOPE OF SERVICES
Our Scope of Services includes the work described in the following tasks and encompasses the work effort involved
in the design and inspection of one signalized intersection:
TASK 1 - DATA COLLECTION
1.1
Obtain base plans (e.g., paving plans) from the City and verify plans in the field. This assumes
that BA will not have to survey the intersection.
1.2 Contact local utility companies to verify the location of utilities at the intersection.
1.3 Obtain 24-hour directional machine traffic counts on each intersection street from the City.
1.4
Obtain peak period and off-peak period manual turning movement counts from the City. This
assumes that BA will not have to collect any traffic volume information in the field.
TASK 2 - SIGNAL PLAN DESIGN
2.1
Prepare intersection base map using a scale of 1" = 20'. The base map will be based on the
information collected in Task 1. The base map will be printed on a 22" by 34" sheet.
2.2
Prepare signal layout sheet on base plan developed in Task 2.1. This sheet will include existing
conditions, pole locations, controller location, conduit runs, wiring table, detector locations, signal
head designations, power source, and other design features.
Ms. M. Shohre Daneshmand, P.E.
Noveml~er 19, 1990
Page 2
2.3 Prepare signing and pavement marking plans.
2.4 Incorporate appropriate City standard detail sheets.
2.5 Review with the City. Incorporate all comments.
2.6 Prepare a list of materials and general notes based on the approved preliminary sheets.
2.7 Prepare probable construction cost estimate.
2.8 Prepare plan set title sheet and incorporate the City's standard traffic control plan sheet.
2.9 Revise City signal specifications, as necessary, to conform with this project.
TASK 3 - GENERATION OF TIMING PLANS
3.1 Using data obtained under Tasks 1.3 and 1.4, determine appropriate timing information for a.m.
peak period, off-peak period, and p.m. peak period.
3.2 Prepare timing plan setting information for incorporation into plans.
3.3 Implement timing data and fine-tune as necessary.
TASK 4 -Bto PROCUREMENT
4.1 Prepare construction bid documents.
4.2 Notify local contractors of the availability of the plans and specifications and the date of the bid
opening.
4.3 Place project advertisements in local newspapers and similar publications.
4.4 Attend bid opening meeting.
4.5 Review and tabulate contractors' bids.
4.6 Recommend contractor based on conformance with the specifications and low bid.
TASK 5 - SIGNAL CONSTRUCTION INSPECTION ASSISTANCE
5.1 Assist contractor in setting pole, cabinet, and detector locations.
5.2 Assist contractor and city in turning signal on when construction is complete.
5.3 Upon satisfactory completion of the project by the contractor, which includes a 30 day test period,
recommend the acceptance of the project to the city.
Ms. M. Shohre Daneshmand, P.E.
November 19, 1990
Page 3
MEET1NGS
For the purpose of our budget and fee estimate, we have identified four (4) formal meetings with the City.
Additional meetings authorized by the City will be billed on a cost basis and are not reflected in our fee estimate.
DELIVERABLES
BA will deliver the following products:
1. Two (2) copies of the preliminary signal layout.
2. Fifteen (15) full sized (22~ x 34~) sets of the final signal plans and specifications.
3. Original mylar reproducible set of the final signal plans.
4. Construction cost estimate letter.
RESPONSIBILITY OF THE CITY
The City will provide the following to BA:
1. Existing paving plans for Denton Tap Road and Bethel Road.
2. Existing traffic volume information.
3. Review comments.
FEE FOR SERVICES AND METHOD OF PAYMENT
The fee for completing the project will be based on our hourly rates for staff personnel, current at the time of
performance, for staff services rendered. Attachment A gives the time and fee estimates on an individual task basis
for the proposed Scope of Services. Reimbursable expenses are also given.
The fee for extra services, meetings, work sessions, and presentations (and work in addition to the tasks indicated
in the Scope of Services) will be billed separately based on our hourly rates for staff time and expense.
Direct reimbursement for out-of-pocket expenses such as mileage, reproduction, etc., will be billed at cost and will
be added to the staff time costs incurred on the project.
Invoices will be submitted monthly and will indicate charges incurred during the preceding month. Billings are due
and payable within thirty (30) days of invoice date. A one and one-half (1.5) percent carrying charge will be added
each month to all past due accounts.
AUTHORIZATION
We are prepared to initiate work on this project upon receipt of a signed copy of this Letter of Agreement. This
proposal will remain valid for thirty days.
Ms. M. Shohre Daneshmand, P.E.
November 19, 1990
Page 4
We appreciate the opportunity to submit this proposal and look forward to assisting you on this project. If you have
any questions regarding this proposal, please do not hesitate to call.
Sincerely,
BARTON-ASCHMAN ASSOCIATES, INC.
_.
Kenneth R. Marshall, P.E.
Senior Associate
KRM:krm
ACCEPTED AND APPROVED BY.
cc: Shelley Kranse
Alan D. Ratliff
(Printed or Typed Name)
City Manaqer
(Title)
AUTHORIZED TO EXECUTE
AGREEMENTS FOR:
City Of Coppell
(Organimtion)
City Manaqer
(Title)