Where the traffic already on the road comes from, where it goes and what it will pay.
Intercept origin and destination surveys — at strategic points and at cordon control points — and stated preference applied to the road user, with georeferenced collection through an application.
When to engage
Through traffic to characterise
A cordon control point measures what crosses the region — an input for toll studies, logistics and access design.
A toll or fare under study
The model needs willingness to pay measured in the field rather than estimated: stated preference scenarios applied to the road user.
A matrix without a household survey
Where a household survey is not viable, the intercept interview at the point of interest delivers the origin and destination of the flow that matters.
Sub-services — Intercept O/D & SP
Intercept O/D at strategic points
Interviews the user on the road itself or at the point of interest, with georeferenced origin and destination.
O/D at cordon control points
Cordon survey on a control line: characterises through traffic and long-distance traffic.
Stated preference (SP)
Choice scenarios applied in the field to measure willingness to pay for a fare, a toll or a new service.
How we deliver
Plan of points and sample
Interview points, control lines, time bands and interview targets defined before fieldwork.
Georeferenced intercept collection
Interviews in the application, with origin and destination located and position, time and surveyor recorded.
Validation and expansion
Consistency interview by interview and expansion by the classified count at the same point, with documented rates.
Matrix, willingness to pay and report
O/D matrix of the intercepted flow, estimates of willingness to pay by segment and a methodological report.
What you receive
- O/D matrix of the intercepted flow, by period and vehicle type
- Estimates of willingness to pay by attribute and segment
- Validated and expanded microdata database (CSV)
- Methodological report — plan of points, rates and expansion
Technical specifications
| Survey designs | Intercept O/D at a strategic point · O/D at a cordon control point · stated preference |
|---|---|
| Collection | Georeferenced application, with position and time per interview |
| Expansion | By the classified count at the same point, with documented rates |
| Applications | Toll studies · fare reviews · impact studies · logistics · access design |
Related project
FIPE — O/D and stated preference on the Baixada Santista ferries
Origin and destination and stated preference surveys applied on the Baixada Santista ferries, with daytime and night-time collection at six boarding points.
Frequently asked questions
Here the interview takes place on the road: the user is approached at the point of interest (intercept) or on the control line (cordon), and the matrix comes from the passing flow. The household O/D starts from the residence and underpins master plans — it sits in the Mobility & Demand Surveys pillar.
The intercept/cordon pair characterises the traffic that passes and stated preference measures willingness to pay. Together they deliver the demand and the elasticity a fare study requires.
The respondent chooses between hypothetical scenarios combining attributes and prices. From the choice come willingness to pay and the weight of each attribute — the input for the elasticity model.
Yes, and it is the most common combination: the classified count gives the volume and the vehicle profile at the point, and the intercept O/D gives the matrix. One expands the other.
Through a georeferenced application, with position, time and surveyor recorded in every interview.
Are you studying a toll, a fare or through traffic?
We deliver the intercept O/D and the stated preference that underpin the study. Talk to a specialist.