Where Sacramento Freight Data Comes From

Sacramento freight data comes from a few kinds of sources: federal surveys, state freight plans, regional planning studies and port or airport reports. Each one answers a different question, and each uses its own geography and methods.

Reading the method first prevents most mistakes.

Federal Sacramento Freight Data

The Census Bureau’s Commodity Flow Survey, produced with the Bureau of Transportation Statistics, reports shipments by commodity, mode, origin and destination. However, its regions are broad, often metro areas or states.

In addition, the FHWA publishes freight resources and models. Those tools estimate flows rather than count every truck.

State and Regional Plans

At the state level, Caltrans publishes the California Freight Mobility Plan and corridor studies. The regional planning agency for the Sacramento area studies freight gateways and corridors in its own plans.

These plans focus on infrastructure and long term needs. In contrast, they rarely describe conditions on a given day or at a given dock.

Port and Airport Information

For the port, the City of West Sacramento describes its primary cargos. Similarly, Sacramento County describes Mather Airport’s role in cargo. For any volume figure, go to the operator’s current report.

Common Mistakes With Sacramento Freight Data

• Treating an estimate as a count
• Comparing years from different methods
• Applying a statewide figure to one city
• Citing an old report as current
• Mixing tons, value and truck trips

Each mistake can turn a sound source into a wrong claim. So note the year, the unit and the geography every time you cite a number.

Using Data for Business Decisions

Public Sacramento freight data shows the shape of regional freight. It does not show what your carrier will charge or how long your loads will take.

For that, use your own shipment records instead. Then compare them with public sources for context. The article on Sacramento freight logistics describes the regional network these sources measure.

Checking a Sacramento Freight Data Source

Ask who produced it, when, how and for what area. Then look for a methods section. If there is none, treat the figure with caution.

For example, a hypothetical distributor reading a news story about regional truck volumes would want to find the original study. The study’s method section would show whether the number counts trucks, estimates them or models them. The guide on Sacramento freight corridors explains the routes those studies usually cover.

Keeping a Source Log

When you cite numbers in a plan or report, keep a short log with the source, year, unit and link. That log lets others check your work and update it when a new release comes out. It also prevents the slow drift where an old estimate gets repeated as a current fact.