Res 2025-188 Approving an on-call professional services agreement with Kimley-Horn and Associates Inc. for the the Transportation Master Plan Update Project.

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Docusign Envelope ID: BB4FCDA1-A564-4C7D-B116-E72FBD797168 7. ROUGH PROPORTIONALITY ASSESSMENT 7.1 Transportation Review The CONSULTANT will work with staff to collect any data not previously provided in Task 3. For the purposes of the Rough Proportionality Assessment, the CONSULTANT will undertake the following tasks in addition to those conducted in previous tasks: • Existing System Research - The CONSULTANT will review how the City currently manages the development review process — specifically as it relates to off -site roadway infrastructure and right-of-way dedication requirements for developers. The CONSULTANT will work with the City to compile the applicable development codes and master plans that may be affected by Texas Local Government Code (LGC) 212 for transportation facilities. It is anticipated that the City will assist the Consultant in identifying the development codes and understanding the current development process. • Thoroughfare Plan and Historic Project Costs - The CONSULTANT will utilize data gathered in Task 3, and also gather data from the existing and proposed updates to City design standards and cross section information for those roadway facilities that may be required to be improved (or contributed towards) by future development. This information will include right-of-way widths, pavement widths, pavement depth, and other required elements typically included as part of a roadway construction project. The CONSULTANT will also gather from the City the average unit prices for commonly used pay items and available historical bid tabulation information for recently completed thoroughfare construction projects. If limited recent City bid tabulations are available this data will be supplemented with the latest available TxDOT unit prices. • Trip Length Information - The CONSULTANT will collect data from CAMPO, the National Household Travel Survey, Replica, and the City Impact Fee Program to determine average trip length information, or any similar studies to aid in the selection of an appropriate trip length for the calculations. Deliverables: Existing System Review, Historic Project Costs, Average Trip Lengths 7.2 Methodology Development Using the data collected, the CONSULTANT will assist the City in developing a rough proportionality methodology consistent with TLG 212. Methodology Outline - The CONSULTANT will coordinate with the City to outline the methodology to be utilized in conducting the Rough Proportionality Assessment. It is anticipated that the methodology will consist of an MS Excel (.xls) worksheet that will include the following elements: • User Guide (an overview of the proportionality worksheet) • Proportionality Worksheet, including the following four (4) sections: City of San Marcos Kimley-Horn and Associates, Inc. TMP Exhibit B Scope of Services Page 17 August 21, 2025