Street Level Imagery RFP Q & A

1. What is the approximate number of residential and commercial parcels?
   • Approximately 165,000 residential parcels
   • Approximately 8,000 commercial parcels
2. Regarding Section 1.1: Project Overview – “…eight (8) % of the District’s buildings having current images on the District CAMA file.”
   • Q: Does this mean the District does not need imagery of the 8%? If so will the District provide a list of these properties?
   • A: No. This figure is simply to illustrate the need for street level imagery. 8% represents about what is captured every year during regular field data collection.
3. Regarding Section 2: Background Information – “All cadastral GIS data is currently maintained in an ESRI geodatabase that uses a tagged data model to model coincident boundaries.”
   • Q: Can District provide us an example of the ESRI geodatabase that uses a tagged data model to model coincident boundaries?
   • A: This information was intended as background info to demonstrate that WCAD has a modern GIS architecture. The tagged data model will not prove very useful as a proprietary system is needed to work in the data model. Geo-spatial data, such as parcels, entity boundaries, etc… can be downloaded from WCAD’s website at http://www.wcad.org/gis-data/.
4. Regarding Section 3.1: Scope of Services – “The scope of service is to photograph and store pictures of the front-face of all buildings for all properties in the District. Also, adhere to the naming convention to match the District’s current system and integrate into our database.”
   • Q: Photograph and Store all primary buildings only or secondary and out-buildings as well?
   • A: WCAD desires to have a current photo of all buildings visible from public streets.
   • Q: What is the total number of buildings?
   • A: Approximately 250,000.
   • Q: Can the District provide building-outlines/footprints of all structures in an electronic (shapefile) format?
   • A: Yes, to the extent of what was available as of the last time building footprints were generated.
   • Q: Will the District provide an example of the existing naming convention and an example of the database?
   • A: The naming convention would look something like “accountNumber.jpg” for primary images, while secondary images would have a an underscore followed by an index (_b, _c, etc…) appended to the account number.
5. Regarding Section 3.2.1: Implementation – “Imagery is to have GPS location and azimuth (photo direction).”
   • Q: Is the azimuth from the direction of the vehicle to the building or the building to the vehicle?
   • A: Azimuth is in reference to the direction the camera is pointing.
   • Q: Does the District want the GPS location of the Camera location and/or the front door of the building?
   • A: Both.
   • Q: Are vehicles to stay on Public Right-of-ways only or will they be allowed to enter all properties unless sign-posted?
   • A: Vehicles are to stay in public right-of-way.