Spatial data

Master Travel Times Databases

A master travel times database contains tables of 1) processing facility sites and 2) truck travel times between every FIA plot and facility, precalculated for 12 Western states

Use with BioSum 5.11.1 and later (SQLite .db) ----> gis_travel_times_master.zip (gis_travel_times_master.zip, 64 MB, updated 9/12/2025), supporting FIA plot data in these states: AZ, CA, CO, ID, MT, NM, NV, OR, SD (RMRS portion), UT, WA, and WY

All known potential current and former processing facility sites are included in the processing site table and the travel time records linked to it, including facilities that may not be suitable destinations for most of the logs emerging from a treatment operation. For example, post-and-pole facilities, logs for log homes and cedar mills can be very specific in their requirements, making invalid any assumption that all merchantable sized logs would be delivered to such facilities.

These processing facilities are coded as type 4 (not merch [1], chips [2] nor both [3]) so that:

  1. 1) if one or more of these sites are expanded to produce products that draw more broadly from the merchantable sized wood removed by forest treatments the travel times needed for calculating haul costs will already be available; and
  2. 2) to enable future adaptation of BioSum to handle additional forest product types. Analysts are responsible for ensuring code 4 facilities remain unchecked in the Treatment Optimizer dialog where available facilities are specified to avoid representing markets and utilization that do not currently exist just as they are responsible to refrain from checking now inactive or closed sites that once processed merchantable logs or dirty chips.

 

Documentation of the analysis workflow used to build the precalculated travel times in this gis_travel_times_master.db and pointers to the source of GIS layers used can be found here. This information will also be included in the Travel Time Geoprocessing chapter of the next version of the BioSum Users Guide.

 

Use with BioSum 5.10.1 (Access .accdb) ----> gis_travel_time_master_accdb.zip version 7/25/2019
This Access .accdb is provided for older projects and includes 9 states. We strongly advise upgrading to the current version of BioSum, if possible.

The following data were used to build the precalculated travel times for the BioSum 5.10.1 version of the travel times database:

 

For legacy support, these are the GIS road layers that were used to build the 7/25/2019 version of gis_travel_time_master.accdb

Vector road layers for CA, OR, WA, ID, MT, WY, NV, CO, UT state_road_vectors.zip

 

Raster road layers for CA, OR, WA, ID, MT, WY, NV, CO, UT in multiple resolutions roads_secsperkm_rasters_9states.zip

 

HaulTime R Script, courtesy of Demetrios Gatziolis, used for building the 7/25/2019 version HaulTime1.02.R

 

imitate_near.R Script, courtesy of Demetrios Gatziolis, for calculating yarding distance from plot points to a raster road network imitate_near.R