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Transport Survey

Establishment of a ComprehensiveTransportation Information Infrastructure

National Transport Surveys


The purpose of a national transport survey is to compile basic data to conduct travel demand analysis by collecting and analyzing basic data related to passenger and freight transport. With that data, then build, use and share a national transport database composed of all data necessary for transport policy making and transport project analysis.

Legal Grounds

  • Article 9 of Traffic System Efficiency Act and Article 6 of the Enforcement Decree
  • Statistics Approval Number 11627 (2005-09-21)
  • Statistics approval by Article 18 of Statistics Act, statistics published by Article 27 of Statistics Act

Statistical Targets for Surveys

Survey area : nationwide

Scope of investigation

  • Passengers (as of 2010)
    • Household travel surveys: 1.05% of all households investigated in 2010 Population and Housing Census (202,000 households)
    • Weekend travel surveys: 5% of household travel survey (11,000 households)
    • Long-distance travel surveys: 10,000 households with long-distance travel observed in household travel survey
    • Passenger transport facilities usage surveys: 62,000 passengers in train stations, terminals, airports, and harbors nationwide (635 facilities)
    • Expressway tollgate surveys: 25,000 passengers who used the closed TG tollgates nationwide (335 facilities)
    • Traffic volume surveys: 162 corridors in various cities (city and county), major thoroughfares in the capital and metropolitan areas (824 locations)
    • Vehicle occupancy surveys: analysis of transport card data and compiled computerized data for intracity, intercity and express buses
  • Freight (as of 2011)
    • Distribution surveys for mining, manufacturing, and wholesale: businesses in each field with 5 or more employees (about 10.2%)
    • Distribution surveys for warehouses: warehouse and distribution businesses (about 37.6%)
    • Freight truck transport surveys: business and non-business purpose freight truck drivers (about 1.2%)
    • Distribution hub transport volume surveys: vehicles entering/exiting major distribution hubs (300 points at 128 distribution hubs)

Survey Methods

visit households, onsite, video recordings

Timing and Frequency: every 5 years, initiated January or December of the target year

  • Standard Survey: every 5 years, nationwide
  • Occasional Survey: when necessary to supplement standard surveys or for specific needs

Survey Details

Established database containing all transport data for each major investigation by conducting national transport surveys and database building projects from 1998


Household travel

  • Households status
    • Number of household members, number of children aged six or above, number and type of vehicles per household
    • Type of house, housing tenure, average monthly income per household
  • Household members
    • Relationship with home owner, date of birth, gender, driver’s licenses, date of birth, employment
    • Workplace and school district for each household member
  • Individual travel
    • Date of travel, travel status on day of survey (describe the reason if not traveled), relationship with the home owner
    • Point of departure and arrival, time of departure and arrival, purpose of travel, means of transport, number of passengers

Weekend travel

  • Households status
    • Number of household members, number of preschool children, number and type of vehicles per household, type of house, housing tenure, average monthly income per household, etc.
  • Individual travel attributes
    • Address of workplace and school, date of birth, gender, possession of drivernd school, date of birth, children, numb (if employed), working hours (if working 5 days a week)
  • Weekend travel attributes
    • Point of departure, time of departure, purpose of travel, means of transport, point of arrival, time of arrival, cost of public transport, parking fee, expressway toll, etc.

Long-distance travel

  • Long-distance travel
    • Point of departure, time of departure, purpose of travel, means of transport, point of arrival, time of arrival, cost of public transport, parking fee, expressway toll, etc.

Traffic volume

  • Traffic volume at major corridors/thoroughfares by time, vehicle type, and travel direction
    • Traffic volume by city and county
    • Individual traffic volume at each main road

Transport facility usage

  • Long-distance travel utilizing transport facilities and access to transport facilities
    • Terminal of departure and arrival, purpose of travel, means of transport to terminals, time of departure, number of passengers

Expressway tollgates

  • Study on car travel using expressways and access to expressways
    • Purpose of travel, point of departure and arrival, time of departure, tollgates encountered, number of passengers, means of transport


Distribution data for mining, manufacturing, and wholesale businesses

  • General business status
    • Total number of employees
    • Annual sales and freight volume
    • Business location
    • Other owned distribution facilities
    • Number of owned freight trucks
    • Use of transport
  • Average volume of transport per month
    • Use of the third party logistics
    • Items and volume of shipments
    • Number of shipments
    • Freight transport attributes (rate of hazardous substances, rate of exports, stop frequency at distribution centers, frequency of container freight, etc.)
  • 3-day transport status
    • Items and volume of shipments
    • Means of transport
    • Shipment frequency
    • Location of stops
    • Location and business type of freight receivers

Distribution data for warehouse businesses

  • Business overview
    • Location of businesses, site area, number of warehouses
    • Ownership type of warehouses, type of warehouses
    • Average lease and monthly rent
    • Status of standard warehouse facilities
  • Warehouses
    • Warehouse area, number of employees, average number of operating days per month
    • Operation type and functions of warehouses
    • Facilities within warehouses
    • Main means of transport, location conditions
  • Handling and storage
    • Items handled
    • Average volume of storage and throughput per month
    • Average time of storage
    • Average rate of use

Freight truck transport data

  • Truck attributes
    • Business types
    • Truck type and loading capacity
    • Ownership (individual owned or individual owned but registered at a distribution company)
    • Vehicle registration place and main area of distribution
  • Travel attributes
    • Average number of operating days per month, operation type
    • Freight items, empty trucks
    • Point of departure, time of departure, type of departure point, load volume
    • Stops, stop arrival time, stop types, loading/unloading volume
    • Point of arrival, time of arrival, type of arrival point, unloading volume

Travel volume at distribution hubs

  • Observed travel volume
    • Assess travel volume by recording traffic for 24 hours and analyzing the recordings
    • National and local industrial complexes, distribution hubs (ICD, IFT, CY, harbor, etc.), etc.

Application of National Transport Surveys

Improving effectiveness of transport-related work and operation

  • Improving operation efficiency with yearly transport SOC investment of 20 trillion won
  • Use as basic data for preliminary projects
  • Saving 140 billion won in administration annually by preventing survey overlap

Supporting government policies

  • Supporting general policies and provisional policies (assessment of SOC projects, establishment of special transport measures, establishment of grounds for trip generation charges, etc.)
  • Generating national transport statistics

Use for building national transport networks and GIS database

  • Use for evaluating SOC legitimacy in the public sector, integrated road management systems
  • Use for R&D in the private sector, GIS ITS analysis, transport planning, evaluating effects, etc.

Use for transport statistics

  • Providing database for national transport costs and greenhouse gas emissions
  • Publishing National Major Transport Statistics

Use for R&D

  • Use for academic research, R&D businesses, ITS businesses, and transport effect evaluations