Welcome to Caltrans Photogrammetry
In partnership with the districts and others, the responsibilities and roles of the Photogrammetry Section is to:
User's Guide to Photogrammetric Services (pdf - 976 Kb)
This Guide provides an easily understood description of the processes, characteristics, and time requirements for photogrammetric products and services available to Caltrans Project Engineers and others users.
This publication is in Adobe PDF format. If you have not installed the Acrobat
Reader, download it now!
Photogrammetric Mapping Standards (pdf
- 66 Kb)
Caltrans Precision Photography Standards (pdf - 73 Kb)
Both of these Adobe
PDF documents are excerpts of currently executed contracts and are purely
for informational use only (not to be used for bidding purposes). The next
bidding opportunity for these contracts will be around April 2003.
Photogrammetric Mapping Standards - Resource Files Updated
about the new Field
Survey Control File Format Updated
Please submit all field data by TSSS Point File Record Format (.tss). Send your file as an e-mail attachment to Paul Fredrickson at: Paul_D_Fredrickson@dot.ca.gov Thank you for your cooperation. If you have any questions please feel free to call Paul at (916) 227-7653 or CALNET 8-498-7653.
Read about the new Photogrammetric Mapping Control File Format
In August of 2000, Caltrans changed the file format for Photogrammetric Control. Caltrans provides mapping contractors with the control information for each individual mapping order. The old control file format utilized .GPA as the file extension. The new control file utilizes .GPE. Both formats will be available to the mapping contractor until January 1, 2001. After that date .GPE will be the only format available.
American Society for Photogrammetry and Remote Sensing (ASPRS)
International Society for Photogrammetry and Remote Sensing (ISPRS)
Please forward your Photogrammetry comments or questions to: email@example.com