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Mobility surveys with
reliable and auditable data

Vehicle classification counts, boarding & alighting, origin-destination and demand studies — with auditable methodology and 1% average count error. For municipalities, operators, consulting firms and lenders.

Four survey types, one quality control methodology

Every Comtacti mobility survey is designed to produce data that withstands challenge — from regulatory bodies, technical committees of financed projects and external auditors. Triple-check on counts, per-site team log, independent recount available.

Vehicle Classification Count

Survey of traffic volume and composition by vehicle category — motorcycles, cars, light trucks, semi-trailers, buses and others — at fixed or itinerant count stations.

  • Triple-check — every 15-minute period verified by an independent operator
  • 1% average error against actual traffic
  • Per-operator log by station and shift
  • Independent recount available to the client
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Boarding & Alighting Survey

Survey of passenger boarding and alighting by line, stop and time period — for route planning, fleet adjustment, saturation analysis and tariff studies.

  • Researchers on board line by line
  • Stop-by-stop registration with timestamp for each stop
  • Compatible with analysis by time band and day of week
  • Deliverable: spreadsheet by line, trip and stop
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Origin-Destination Survey (O/D)

Comtacti conducts O/D surveys in two formats: household-based — capturing people's mobility behaviour across the city, zone by zone — and at strategic points such as terminals, corridors and high-demand intersections.

  • Household survey — home interviews to map mobility patterns by zone
  • Strategic points — terminals, corridors and high-demand intersections
  • Collection via proprietary app — georeferenced data, no paper forms
  • Per-interviewer log — every interview traceable by researcher
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Other mobility services

Comtacti conducts complementary surveys for urban mobility studies, including speed and travel time, stated preference, vehicle occupancy and intersection studies.

  • Speed and travel time survey (floating car)
  • Vehicle occupancy and passengers per kilometre (PPK)
  • Intersection survey — movements and conflicts
  • Stated preference for tariff and modal studies
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1% average error is not a target —
it is the result of a process

Vehicle counts are frequently challenged in regulatory processes, bids and tariff reviews. Comtacti's methodology is designed so that every number delivered is defensible.

Triple-check

The counting process has 3 stages: pre-processing by computer vision, reducing counting time by up to 80%; manual count from the processed video; and simultaneous review by software and reviewers.

Per-site team log

Each survey station has a record of operator, shift, field conditions and any incidents. The client receives the full log alongside the data — not just the final result.

Independent recount

The client can request a recount of any period or station at any time. For stations with video recording, the recount is performed directly from the footage.

Mobility projects that require data that holds up under review

Municipalities and transport secretariats

Urban Mobility Plans (PlanMob), demand studies for new BRT corridors, bus route adjustments and line reviews. Methodology compatible with Ministry of Cities requirements.

Public transport operators

Demand studies for tariff revision, saturation analysis by line and time, boarding & alighting surveys for fleet and frequency optimisation.

Mobility consulting firms

Field subcontracting for projects requiring auditable primary data — PlanMob, PLAMUS, traffic impact studies and demand models for lenders.

Lenders and multilateral organisations

Base surveys for projects financed by WRI, IDB, BNDES and IFC that require auditable demand data as a condition of financing approval.

1% average count error
3× checks per period
SP · RJ · BH main metros served
35+ years of experience

Clients and partners in urban mobility

BHTRANS MetrôDF WRI Brasil Governo de Brasília Governo do RJ Governo de SC Prefeitura de Praia Grande Prefeitura de Santo André São José dos Campos Via Mobilidade URBES SETA Engenharia

Have a mobility project
that requires field data?

Talk to a Comtacti specialist. Describe the project and we'll come back with a proposal or ask for the additional information needed.