Study Limitation

When setting up OD studies, each study type comes with specific limits on variables that are allowed for study configuration. The tables below summarize the limits for Region-based, Selected link/region and Flow links OD studies.

Region-Based OD Study Limits

ParameterRegion based Origin Destination
# of Date Ranges4
Maximum Date Range1 year
Minimum Date Range1 day
Maximum # of Time Sets24
Maximum Time Set24 hours
Minimum Time Set1 hour
# of Regions600
Maximum Area Size (Per Study)20,000 km2

Selected Link/Region OD Study Limits

ParameterSelected Link/Region
# of Date Ranges4
Maximum Date Range1 year
Minimum Date Range1 day
Maximum # of Time Sets24
Maximum Time Set24 hours
Minimum Time Set1 hour
Maximum Segment Length (Link)2,000 m
Maximum Area Size (Region)3 km2
Study Radius (from your selected link)5-50 kms
Study Radius (from your selected region)5-10 kms

Flow Links OD Study Limits

ParameterFlow Links
# of Date Ranges4
Maximum Date Range1 year
Minimum Date Range1 day
Maximum # of Time Sets24
Maximum Time Set24 hours
Minimum Time Set1 hour
# of Regions600
Maximum Area Size (Per Study)20,000 km2
Last Edited: September 17, 2026