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HomeMy WebLinkAbout18- RFP Package - GIS Digital Imagery and LiDar Data Collection REQUEST FOR PROPOSALS DIGITAL ORTHOIMAGERY & LIDAR DATA COLLECTION INTRODUCTION The City of Bozeman (“City”) is seeking proposals from Consultants (“Consultant”) qualified to provide: • Digital Orthoimagery: 1”=100’ map scale (i.e., 1”=600’ photo scale), 6” pixel, 4-band (RGB & NIR), true color, orthorectified digital imagery (with an option for higher resolution 3” pixel) • LiDAR: o Hydrography (streams & water bodies) o Building Footprints (extruded with height) o Public Sidewalks (within city limits only) o Digital Terrain Model (DTM) & Digital Elevation Model (DEM) & Hillshade (grayscale) o Breaklines & Point Cloud (raw & classified) • Project Reports & Metadata The City regularly uses aerial photography and planimetric information to support regulatory, land management, planning and engineering projects. This project is to update all aerial imagery for the entire 77.4 square mile planning boundary in addition to collecting LiDAR data to update a variety of planimetric information (image included in Attachment B of this RFP shows the area of interest). This document defines the technical, cost and time scope for developing a portion of the City’s GIS database. The desired flight dates are between April 1st and April 30th 2018. The desired project completion date is 90 days from photo acquisition. PRELIMINARY SCOPE OF WORK The preliminary scope of work involved for this project is outlined below. Additional tasks and work elements may be added during contract negotiations. It is also possible that tasks or elements could be deleted through negotiation. In its proposal, the Consultant may recommend addition/deletion of tasks or modification of tasks in describing its particular understanding and approach for the project. Proposals must clearly identify any elements of the proposed scope of work that would not be provided by the prime Consultant. Any sub-Consultants which comprise the overall Consultant team must be identified along with a description of past working history between the firms. The City desires to complete the proposed work in a diligent manner. Proposals must clearly indicate the Consultant’s anticipated schedule given their staffing and current and projected work load commitments. The proposal shall include a proposed schedule of events necessary to complete the work. The schedule shall include a process and schedule for the submittal of draft products for City review prior to final submittals. Prior to receiving notice to proceed after negotiations, before any data collection the Consultant must submit a project plan. The project plan will include the following: 1) A map showing the study area boundaries and flight path at a reasonable scale (approx. 1:150,000) 2) Documentation specifying altitude, air speed, scan angle, scan rate, and other flight and equipment information deemed appropriate. 3) A chart of areas of high Position Dilution of Precision (PDOP), or a list showing the time of the beginning and end of high PDOP. 4) The proposed ground control plan containing Airborne GPS support. If necessary, the Consultant shall obtain all rights of entry, be responsible for all GPS control information and show all National Spatial Reference System (NSRS) monuments that will be used for the GPS base stations for airborne GPS control. Failure to comply with any of these provisions may result in the rejection of the proposal. Digital Imagery Specifications: Orthoimagery shall be acquired only on clear days, leaf-off conditions, with no snow and minimal puddling of rain water or other weather-related effects obscuring the ground surface. At a minimum, National Map Accuracy Standards for the production of the Orthoimagery must be adhered to. The camera and magazines shall meet or exceed the most recent USGS specifications for aerial camera systems. Aerotriangulation/bundle adjustment shall be performed by the current state-of-the-art analysis software to maximize accuracy of the data. o Photographic Conditions • Tree Cover. Photography shall be undertaken while the leaves are off the deciduous trees. • Clouds. Clouds or cloud shadows must not appear on the imagery. High, thin overcast is permitted above the flying altitude if it does not cause ground mottling or a discernable reduction in light levels and/or ground object shadows. • Well-Defined Images. Collect imagery to obtain well-defined images. Do not attempt imagery acquisition where the ground is obscured by haze, smoke, smog, dust, or falling snow, sleet, rain, or other obscuring phenomena. Do not collect imagery when ground is covered by water (flood), snow, or ice. • Visibility. The minimum visibility at the time of exposure must be 10 miles or greater. • Sun Angle. The majority of the project area will be collected when the sun angle is not less than 40°. In areas with tall trees or areas with significant urban development with buildings 3 stories or taller (such as downtown Bozeman), increase the minimum sun-to-horizon angle to acquire the photography during the times of minimal shadow. • Tilt will not exceed four degrees for any photographic frame and will average not more than two degrees for any ten consecutive frames. Relative tilt exceeding six degrees between any two successive frames may be cause for rejecting that portion of the flight lines. • Crab angle as measured from the average line of flight will not exceed five degrees. The course- heading differential between any two successive exposures will not exceed five degrees. • Forward overlap will be at least 55 percent between consecutive exposures. The average sidelap will be at least 20 percent. o Image Quality/Radiometry • There shall be no areas of an orthophoto where the process was incomplete due to image gaps or lack of data. • All digital orthophotos shall be radiometrically adjusted as necessary so that adjacent digital orthophotos can be displayed simultaneously without an obvious visual edge seam between them. Localized adjustment of the brightness values shall be performed to minimize tonal differences between the join areas. For this adjustment, the orthophoto judged by visual inspection to have the better contrast shall be used as the reference orthophoto. Localized brightness values of the adjacent orthophoto shall be adjusted to that of the reference orthophoto. When possible and feasible, the area adjusted should be bounded by a tonal break ground feature such as a road, field line, shadow line, etc. The radiometric adjustment should not compromise the accuracy, clarity, or resolution of the orthophoto. • Prior to undertaking full digital orthophoto production, the Consultant shall furnish the City with sample digital images to evaluate and accept as examples of overall image quality. The City will select one image, which will become the standard to which all subsequent digital orthophotos will be compared for acceptance/rejection relative to image quality. LiDAR Specifications: The Contractor shall acquire aerial fixed wing LiDAR data collected at a 1.4 meter nominal pulse spacing (NPS), and processed to a bare-earth Digital Elevation Model (DEM) meeting vertical NSSDA RMSEz of 15 cm (NSSDA Accuracy 95% = 30 cm) with vertical accuracy assessment procedures to comply with FEMA Guidelines and Specifications for Flood Hazard Mapping Partners. The DEM will have inland water bodies and streams hydro-flattened as defined in the USGS National Geospatial Program Base LiDAR Specification. The LiDAR data and associated derived products will meet/exceed minimum standards addressed in the U. S. Geological Survey National Geospatial Program Lidar Base Specifications Version 1.2, November 2014. The DTM will be of such precision and quality to support projects such as slope analysis; develop perspective plots; perform hydrographic and hydrologic analyses; generate cross-sections; regenerate contours; as the control network in the development of orthoimagery of the mapped areas; and other products requiring continuous contours of mapped areas. The selection and spacing of DTM points shall be defined by the contractor to be appropriate for the generation of 1-foot contours for 50ft scale to meet or exceed National Map Accuracy Standards. The City requires that digital image and LiDAR data be acquired simultaneously captured during one flight to ensure consistency between image and LiDAR datasets. CONTROL All horizontal and vertical control necessary to provide the deliverables requested in the proposal; digital orthoimagery, and LiDAR meeting the standards specified herein shall be completed by the Consultant. Ground control must be adequate to support the accuracy specifications identified herein. Some existing vertical and horizontal control may be available for this area. The Consultant shall review all horizontal and vertical control for accuracy and completeness. If the existing control is not deemed sufficient, then the Consultant shall describe any additional control work necessary to provide a DTM meeting the specified standards. The Consultant shall provide in the proposal, a draft control plan. The City will not perform any surveying for this project. Any survey work performed by the Consultant shall be done in conformance with Montana survey laws, regulations and administrative rules. For survey control work performed by the Consultant (or sub-Consultants) the following requirements will pertain: A brief survey control report in PDF and/or other digital format shall be delivered that contains: • One digital copy of the control diagram (the survey network scheme). • One copy of all field notes, horizontal and vertical computations, and control network adjustments, with the connections to the National Spatial Reference System shall be clearly shown. • A digital copy of the new control points established to control the photogrammetry with all observations and ties, a point description, digital photograph of the monument and the control point location context, and coordinate values in geographic coordinates and in both UTM Zone 12 NAD83 (2011) meters, NAVD88 meters and Montana State Plane NAD83 (2011) meters, NAVD88 meters. • Survey party personnel, equipment, software, and procedures used. DELIVERABLES The respondent shall submit a delivery schedule. The Consultant shall deliver to the City for acceptance the following items: 1) Flight Plan and Logs: The flight plan shall be distributed to and approved by the City prior to acquisition. a. Project flight lines on a map displaying the project area and distributed as a feature class or Shapefile suitable for inclusion in ESRI ArcGIS software. Flight lines shall include flight line numbers within the feature attribution, and metadata shall describe the software used to generate the flight plan. b. Approximate number of exposures for the intended coverage area. c. Image centers of each exposure with date and time of acquired photo included. The data shall be distributed as a feature class or Shapefile suitable for inclusion in ESRI ArcGIS software. d. Upon completion of acquisition the Contractor shall provide a collection report summarizing the flight and logs. 2) Calibration Reports: Camera and digital sensor calibration reports along with a product characterization report validating USGS Digital Aerial Type standards shall be provided. 3) Survey Control Report: The following information shall be provided in a final survey report. a. Positional AGPS data and a statistical summary of the AGPS adjustment results. b. IMS sensor orientation and a statistical summary describing the overall accuracy of adjusted IMU data. c. Differentially corrected GPS ground control data used to supplement the AGPS data and a narrative describing all aspects of the ground survey including locations and extent of the network. d. The results and analysis of the constrained least squares adjustment, tables summarizing GPS misclosures, and a description of equipment and software used. 4) Aerial Triangulation Report: An aerial triangulation report shall be provided upon completion of all adjustments. This report shall include, a. An executive summary of the Aerotriangulation solution and its results. b. A detailed narrative of the adjustment process and quality checks for accuracy. c. A description of the software and equipment used to perform the adjustments. d. A listing of the final adjusted coordinates in a spreadsheet or format agreed upon during contract negotiations. 5) Digital Orthoimagery Images: a. 1”=100’ map scale (i.e., 1”=600’ photo scale), 6” pixel (Optional: 3” pixel), 4-band (RGB and NIR), true color, orthorectified digital imagery b. Seamless mosaic at 1-foot (Optional: 0.5-foot) pixel resolution. c. Edge-matched, non-overlapping tiles at 0.5-foot (Optional: 0.3-foot) pixel resolution based on the tile scheme provided by the City and shall register to the existing City orthophotography database. d. Images with edge artifacts, mismatch, or voids will be rejected. e. Breaklines used to correct bridge and overpass distortion shall be provided in a feature class or Shapefile suitable for inclusion in ESRI ArcGIS software. 6) LiDAR Data: a. Hydrography: Streams and water bodies throughout the planning area. b. Building Footprints: Extracted with maximum height above ground as an attribute. c. Public Sidewalks: Within city limits only. d. Digital Terrain Model (DTM): Elevation data points shall be delivered as either a regular or irregular DTM in an ESRI geodatabase compatible format. e. Digital Elevation Model (DEM): Gridded raster representation in an ESRI geodatabase compatible format (a TIN is not being requested under this solicitation). f. Hillshade: Grayscale 3D representation of the bare-earth surface. g. Breaklines: ESRI feature class, same reference system as LiDAR point. The Consultant will produce hydro-enforced / hydro-flattened breaklines at NSSDA accuracy standards for 1:2,400-scale maps. o Breaklines will allow water to flow from the tops of hills all the way down the stream network o Breaklines will cut through culverts and bridges to allow water to flow downstream network o Elevation values for the breaklines will be derived from the bare-earth LiDAR o Single line stream centerlines for streams <2 meters wide will be created at channel bottom o For streams >2 meters wide, double breaklines will be digitized only at the bottom of both sides of the channel at the land/water interface (but not at the top of bank) o Drainage ditches (single line <2 meters wide) o Drainage ditches (double line >2 meters wide at bottom of channel) o Water bodies (ponds, lakes, reservoirs) greater than ¼ acre in size h. Point Cloud – Raw: Data shall be delivered in LAS files compatible with the most current ASPRS LAS Specification format and must meet the requirements identified within this specification. The point cloud data shall not contain any data voids and overlap between flight lines shall be removed. i. Point Cloud – Classified: Fully compliant ASPRS LAS v1 1.4 classifications. j. Tiling: Single schema for tiling, no overlap, tile-based .prj files, edgematch seamlessly in horizontal & vertical. 7) Progress Reports: Progress reports shall be provided by e-mail on a weekly basis for aerial photography acquisition until delivery of the pilot project, and bi-weekly thereafter until the project is complete. These informal reports shall consist of a summary of production status, major activities completed during the most recent reporting period, description of issues and corrections, and associated status maps or acquired flight lines. 8) Metadata: Complete FGDC-compliant metadata shall be provided for all data in an XML format. The metadata shall provide a complete description of identification, data quality, spatial data organization, spatial reference, and entity and attribute information. The metadata for orthorectified imagery shall also include acquisition dates. 9) Project Report: A final project report summarizing the flight acquisition, orthorectification process and LiDAR data collection, quality control and assurance, and deliverables provided shall be provided upon completion of the project. This report shall include a detailed narrative of the analysis, accuracy assessment, and validation of all deliverables. All final data shall become sole property of the City with no restrictions on use or dissemination. Final deliverables and will be stored in the City’s ArcSDE SQL database and will be made available to internal and external customers through various client applications and downloadable data files. All data shall be delivered in both UTM Zone 12 NAD83 (2011) meters, NAVD88 meters and Montana State Plane NAD83 (2011) meters, NAVD88 meters. For more information on the National Adjustment of 2011, please visit the following website: http://www.ngs.noaa.gov/web/surveys/NA2011/ Respondents shall indicate in their proposal a description of the internal quality control processes they will utilize throughout the various phases of the project to assure that the contract deliverables will be acceptable. The Consultant may provide forms, flow charts, or other materials to document the quality control process. The City retains the sole right to determine contract adherence to quality control requirements. Judgment that the Consultant is in breach of the quality control requirements may require suspension of any phase of the contract until such time as the City can determine that such problem(s) have been remedied. PROPOSAL REQUIREMENTS Three (3) copies of the proposal, and one electronic searchable PDF file, must be submitted no later than 5:00 pm on January 23, 2018, to the City Clerk at the physical address below. Proposals shall be individually bound and presented in a neat and orderly fashion. Please note that the USPS will not deliver mail to this location. Proposals must be shipped or hand delivered. Late proposals will not be considered. City Clerk, City of Bozeman 121 N. Rouse Ave., Suite 202 Bozeman, MT 59715 Proposals shall, at a minimum, include the following items: • A narrative describing the Consultant’s particular understanding and approach for the project. Specific challenges should be identified along with unique solutions proposed to complete project tasks and achieve project goals. • A proposed work plan indicating tasks to be accomplished, work schedule, Consultant personnel and sub- Consultants expected to perform each major task element, prior work history of Consultant and sub- Consultants, and the involvement (and timing of that involvement) anticipated of City staff. • Qualifications of key individuals assigned to the project, their availability during the relevant time periods, and their recent experience on similar projects. • References for whom key individuals of the Consultant and sub-Consultants have performed similar work within the last five years, and two examples of work produced under similar contracts (examples produced on projects utilizing the key personnel identified for this proposal are preferred). • A completed and signed Non-Discrimination Affirmation Form (see Attachment B). The City reserves the right to accept or reject any and all proposals; to add or delete items and/or quantities; to amend the RFP; to waive any minor irregularities, informalities, or failure to conform to the RFP; to extend the deadline for submitting proposals; to postpone award for up to 30 days; to award one or more contracts, by item or task, or groups of items or tasks, if so provided in the RFP and if multiple awards are determined by the City to be in the public interest; and to reject, for good cause and without liability therefore, any and all proposals and upon finding that doing so is in the public interest, to cancel the procurement at any time prior to contract execution. CONSULTANT SELECTION A Consultant selection committee consisting of key City staff will choose, in its opinion, the most qualified Consultant to provide services required for the project. Proposals will be evaluated on the following criteria and the requirements of MCA 18-8-201 et seq. • The Consultant’s specific project approach and understanding; • Qualifications of professional personnel to be assigned to the project; • Capability to meet project time and budget requirements; • Location of the Consultant in relation to project; • Present and projected workloads; • Related experience on similar projects; • Recent and current work for the City. A determination of finalists will be made by the selection committee based on an evaluation of written proposals received. The committee will determine whether or not interviews will be needed to complete the selection process. Award will be made following contract negotiations to the most qualified Consultant at a price which the City determines to be fair and reasonable, taking into account the estimated value of services to be rendered, as well as the scope, complexity and professional nature thereof. If the City is unable to negotiate a satisfactory contract with the Consultant initially selected at a price the City determines to be fair and reasonable, negotiations with that Consultant will be formally terminated and the City will select another Consultant in accordance with MCA 18-8-204 and continue until an agreement is reached or the process is terminated. All proposals submitted in response to this RFP become the property of the City and public records and, as such, may be subject to public review. ADDITIONAL INFORMATION AND CONDITIONS All prospective Consultants may submit written questions about, or request written clarifications of the RFP, including written protests of the RFP’s terms and conditions or technical specifications no later than January 10, 2018. All questions must be in writing (includes email) and addressed to the City’s staff contact. No other staff member will answer questions about this Request for Proposals. City Contact: Questions or requests for additional information regarding this project or RFP requirements may be directed to: Jon Henderson, GIS Manager City of Bozeman – GIS Division P.O. Box 1230 Bozeman, MT 59771-1230 (406) 582-2250 jhenderson@bozeman.net Non-Discrimination Policy: Discrimination in the performance of any contract awarded under this request for proposal on the basis of race, color, religion, creed, sex, age, marital status, national origin, or actual or perceived sexual orientation, gender identity or disability is prohibited. This prohibition shall apply to the hiring and treatment of the awarded entity’s employees and to all subcontracts. Every entity submitting under this request for proposal must sign and return the attached affirmation statement with their bound response to this request for proposal. ATTACHMENT A: NON-DISCRIMINATION AFFIRMATION FORM _________________________________[name of entity proposing] hereby affirms it will not discriminate on the basis of race, color, religion, creed, sex, age, marital status, national origin, or because of actual or perceived sexual orientation, gender identity, or disability in the performance of work performed for the City of Bozeman, if a contract is awarded to it, and also recognizes the eventual contract, if awarded, will contain a provision prohibiting discrimination as described above and that this prohibition shall apply to the hiring and treatment of the ______________________[name of entity proposing] employees and to all subcontracts it enters into in the performance of the agreement with the City of Bozeman. Signature of Proposer: ___________________________________________ Person authorized to sign on behalf of the proposer Sources: Esri, HERE, DeLorme, TomTom, Intermap, increment P Corp., GEBCO,USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey, EsriJapan, METI, Esri China (Hong Kong), swisstopo, MapmyIndia, ©OpenStreetMap contributors, and the GIS User Community 1 0 10.5 Mile ¯2018 Bozeman Aerial Flight Boundary Attachment B