R-03-08-14-14F2 - 8/14/2003• ST:
,I1. Or m . gi / , /L
CHRISTINE R. MARTINEZ, City Sec/ - tary
WHEREAS, the City of Round Rock has previously entered into a
contract for engineering services ( "Contract ") with WHM Transportation
Engineering Consultants, Inc. for the development of a model to study
traffic conditions at Resters Crossing and IH 35, and
WHEREAS, WHM Transportation Engineering Consultants, Inc. has
submitted Supplemental Agreement No. 2 to the Contract for Engineering
Services for a change in the scope of services, and
WHEREAS, the City Council desires to enter into said Supplemental
Agreement No. 2 with WHM Transportation Engineering Consultants, Inc.,
Now Therefore
BE IT RESOLVED BY THE COUNCIL OF THE CITY OF ROUND ROCK, TEXAS,
That the Mayor is hereby authorized and directed to execute on behalf
of the City Supplemental Agreement No. 2 to the Contract for Engineering
Services with WHM Transportation Engineering Consultants, Inc., a copy of
same being attached hereto as Exhibit "A" and incorporated herein.
The City Council hereby finds and declares that written notice of
the date, hour, place and subject of the meeting at which this
Resolution was adopted was posted and that such meeting was open to the
public as required by law at all times during which this Resolution and
the subject matter hereof were discussed, considered and formally acted
upon, all as required by the Open Meetings Act, Chapter 551, Texas
Government Code, as amended.
RESOLVED this 14 day of August, 2003
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/WORLDOX /0: /000.0 /RESOLDTI /R30814F2 .WPD /sc
RESOLUTION NO. R- 03- 08- 14 -14F2
�I!
NYLE Avgr , ayor
City of • Rock, Texas
STATE OF TEXAS
COUNTY OF WILLIAMSON
SUPPLEMENTAL AGREEMENT NO. 2
TO AGREEMENT FOR ENGINEERING SERVICES WITH
WHM TRANSPORTATION ENGINEERING, INC.,
FOR THE RESTERS CROSSING ROAD AND IH -35 INTERCHANGE
CORSIM MODELING STUDY
This Supplemental Agreement No 2, to Agreement for Engineering Services is made by and
between the City of Round Rock, Texas, hereinafter called the "City" and WHM Transportation
Engineering Consultants, Inc., hereinafter called the "Engineer".
WHEREAS, the City and Engineer executed an Agreement for Engineering Services,
hereinafter called the "Agreement", on the 14 of November 2002 to develop a model to study
traffic conditions at Hesters Crossing and 11135; and
WHEREAS, the City and Engineer executed Supplemental Agreement No. 1 on June 12 2003
to provide for coordination with the Texas Department of Transportation, and to increase the
lump fee from $30,000 to $36,500, and
WHEREAS, it has become necessary to amend the Agreement to provide for a modification in
the scope of services, and to increase the lump sum fee;
NOW THEREFORE, premises considered, the City and the Engineer agree that said
Agreement is amended as follows:
I.
Article 2. Scope of Services to be Performed by Engineer and Exhibit B, Services to be
Performed by The Engineer shall be amended as set forth in the attached Addendum to Exhibit
B.
11.
Article 4, Compensation and Exhibit D, Fee Schedule shall be amended by adding $15,000.00 to
the lump sum amount payable under the Agreement for a total of $51,500.00 and as reflected in
the attached Addendum to Exhibit D.
Supplemental Agreement Rev. 4/2/03
53136
EXHIBIT
IN WITNESS WHEREOF, the City and the Engineer have executed this Supplemental
Agreement No. 2 in duplicate.
WHM TRANSPORTATION ENGINEERING, INC. I
By: `�I iA L
Heidi Ross, P.E., Principal
quvlizr
CITY OF ROUND ROCK
By:
Nyle Maxwell, Mayor
Date
Supplemental Agreement Rev. 4/2103
53136
2
Addendum to Exhibit B
Addendum to Services to be Performed by the Engineer
The following additional tasks will need to be performed to address TxDOT's comments:
1. Meet and coordinate with TxDOT to verify model calibration and queue by -pass values.
2. Calibrate 2002 AM peak CORSIM model to develop parameters for use in future models.
3. Obtain 24 -hour tube counts at four (4) entrance /exit ramps along IH -35 south of SH 45 and at
two (20 IH -35 Frontage Road locations.
4. Expand 2007 CORSIM model network to Grand Avenue Parkway to incorporate entrance
and exit ramps to and from FM 1325 and Grand Avenue Parkway south of SH 45.
5. Expand 2025 CORSIM model network to Grand Avenue Parkway to incorporate entrance
and exit ramps to and from FM 1325 and Grand Avenue Parkway south of SH 45.
6. Develop 2007 AM peak base case CORSIM model run scenario to incorporate agreed upon
calibration parameters.
7. Develop 2025 AM peak base case CORSIM model run scenario to incorporate agreed upon
calibration parameters.
8. Run the following alternative improvement scenarios for model years 2007 and 2025:
a. Collector- distributor road along southbound IH -35 Frontage Road at Hesters Crossing
Road.
b. Additional through lane along southbound 111 -35 Frontage Road at Hesters Crossing
Road.
9. Using cost information provided by others, perform benefit/cost analysis for alternative
improvement scenarios.
10. Prepare letter report based on revised analysis results.
11. Attend meetings with City of Round Rock and TxDOT staff to present results of CORSIM
modeling study. Two meetings have been assumed for budgeting purposes.
Supplemental Agreement Rev. 4/2/03
53136
3
Addendum to Exhibit D
Fee Schedule
The lump sum payable under this Contract without modification of the Contract is $51,500.00.
Supplemental Agreement Rev. 4/2/03
53136
4
CORSIM Model at
Hesters Crossing and IH -35
ROUND ROCK. TE %0.S
DATE: August 8, 2003
SUBJECT: City Council Meeting - August 14, 2003
ITEM: *14.F.2. Consider a resolution authorizing the Mayor to execute
Supplemental Agreement No. 2 with WHM Transportation
Engineering Consultants, Inc. for the development of a
model to study traffic conditions at Hesters Crossing and IH
35.
Resource: Tom Word, Chief of P. W. Operations
Bill Stablein, Transportation Engineering Associate
History:
WHM Transportation Engineering Consultants, Inc., has been
requested to continue to provide services in the development of
a CORSIM model. This model is to simulate traffic conditions
related to the proposed intersection by -pass near Hester's
Crossing and IH -35 and will include IH -35 main lane and
frontage road operations between McNeil Road and SH -45.
Further work is needed to meet and coordinate with TxDOT to
verify model calibration and queue bypass values. WHM has
agreed to perform the additional work for $15,000.00.
Funding:
Cost: $15,000.00
Source of funds: Transportation System Development Corporation
Outside Resources: WHM Transportation Engineering Consultants, Inc.
Impact /Benefit: This model will identify the impact of the ramp closure on
the IH 35 and Hester's Crossing interchange with and
without the construction of the proposed collector -
distributor road.
Public Comment: N/A
Sponsor: N/A
STATE OF TEXAS
COUNTY OF WILLIAMSON
SUPPLEMENTAL AGREEMENT NO. 2
TO AGREEMENT FOR ENGINEERING SERVICES WITH
WHM TRANSPORTATION ENGINEERING, INC.,
FOR THE IIESTERS CROSSING ROAD AND HI -35 INTERCHANGE
CORSIM MODELING STUDY
This Supplemental Agreement No 2, to Agreement for Engineering Services is made by and
between the City of Round Rock, Texas, hereinafter called the "City" and WHM Transportation
Engineering Consultants, Inc., hereinafter called the "Engineer ".
WHEREAS, the City and Engineer executed an Agreement for Engineering Services,
hereinafter called the "Agreement ", on the 14 of November 2002 to develop a model to study
traffic conditions at Hesters Crossing and 111 35; and
WHEREAS, the City and Engineer executed Supplemental Agreement No. 1 on June 12 2003
to provide for coordination with the Texas Department of Transportation, and to increase the
lump fee from $30,000 to $36,500, and
WHEREAS, it has become necessary to amend the Agreement to provide for a modification in
the scope of services, and to increase the lump sum fee;
NOW THEREFORE, premises considered, the City and the Engineer agree that said
Agreement is amended as follows:
I.
Article 2, Scope of Services to be Performed by Engineer and Exhibit B, Services to be
Performed by The Engineer shall be amended as set forth in the attached Addendum to Exhibit
B.
11.
Article 4, Compensation and Exhibit D, Fee Schedule shall be amended by adding $15,000.00 to
the lump sum amount payable under the Agreement for a total of $51,500.00 and as reflected in
the attached Addendum to Exhibit D.
� D3 -081L/ I �F L
Supplemental Agreement Rev. 4/2/03
53136
1
IN WITNESS WHEREOF, the City and the Engineer have executed this Supplemental
Agreement No. 2 in duplicate.
WHM TRANSPORTATION ENGINEERING, INC.
By: 4 itia ,
Heidi Ross, P. Principal
By:
Nyle M
II 0 Date
CITY OF ROU R S K
e a sr
Date
Supplemental Agreement Rev. 4/2/03
53136
2
Addendum to Exhibit B
Addendum to Services to be Performed by the Engineer
The following additional tasks will need to be performed to address TxDOT's comments:
1. Meet and coordinate with TxDOT to verify model calibration and queue by -pass values.
2. Calibrate 2002 AM peak CORSIM model to develop parameters for use in future models.
3. Obtain 24 -hour tube counts at four (4) entrance /exit ramps along 111 -35 south of SH 45 and at
two (20111-35 Frontage Road locations.
4. Expand 2007 CORSIM model network to Grand Avenue Parkway to incorporate entrance
and exit ramps to and from FM 1325 and Grand Avenue Parkway south of SH 45.
5. Expand 2025 CORSIM model network to Grand Avenue Parkway to incorporate entrance
and exit ramps to and from FM 1325 and Grand Avenue Parkway south of SH 45.
6. Develop 2007 AM peak base case CORSIM model run scenario to incorporate agreed upon
calibration parameters.
7. Develop 2025 AM peak base case CORSIM model run scenario to incorporate agreed upon
calibration parameters.
8. Run the following alternative improvement scenarios for model years 2007 and 2025:
a. Collector - distributor road along southbound IH -35 Frontage Road at Hesters Crossing
Road.
b. Additional through lane along southbound 111-35 Frontage Road at Hesters Crossing
Road.
9. Using cost information provided by others, perform benefit/cost analysis for alternative
improvement scenarios.
10. Prepare letter report based on revised analysis results.
11. Attend meetings with City of Round Rock and TxDOT staff to present results of CORSIM
modeling study. Two meetings have been assumed for budgeting purposes.
Supplemental Agreement Rev. 4/2/03
53136
3
Addendum to Exhibit D
Fee Schedule
The lump sum payable under this Contract without modification of the Contract is $51,500.00.
Supplemental Agreement Rev. 4/2/03
53136
4
CORSIM Model at
Hesters Crossing and IH -35
Mayor
Nyle Maxwell
Mayor Pro-tem
Tom Nielson
Council Members
Alan McGraw
Carrie Pitt
Scot Knight
Scott Rhode
Gary Coe
City Manager
James R. Nuse, P.E.
City Attorney
Stephan L. Sheets
ROUND R , TEXAS
PURPOSE. PASSION. PROSPERITY.
August 25, 2003
Ms. Heidi Ross, P.E., Principal
WHM Transportation Engineering Consultants, Inc.
2717 Rio Grande Street
Austin, TX 78705
Dear Ms. Ross:
The Round Rock City Council approved Resolution No. R- 03- 08 -14-
14F2 at their regularly scheduled meeting on August 14, 2003. This
resolution approves Supplemental Agreement No. 2 to the contract for
Engineering Services for the development of a model to study traffic
conditions at Hesters Crossing and IH 35.
Enclosed is a copy of the resolution and original agreement for your
files. If you have any questions, please do not hesitate to contact Bill
Stablein at 218 -5555.
Sincerely,
Sherri Monroe
Assistant City Secretary
Enclosure
rn
CITY OF ROUND ROCK Administrative Dept, 221 East Main Street • Round Rock, Texas 78664
Phone: 512.218.5400 • Fax: 512 218,7097 • www.ci.round- rock.tx.us