- Air transport > Passengers carried: Air passengers carried include both domestic and international aircraft passengers of air carriers registered in the country.
- Airports: Total number of airports. Runways must be useable, but may be unpaved. May not have facilities for refuelling, maintenance, or air traffic control.
- Airports > Per capita: Total number of airports. Runways must be useable, but may be unpaved. May not have facilities for refuelling, maintenance, or air traffic control. Per capita figures expressed per 1 million population.
- Airports > With paved runways > Total: Total number of airports with paved runways (concrete or asphalt surfaces)
- Commute > Distance: Distance. Based on 0-50 contributions for Argentina, Armenia, Austria and 63 more countries and 50-100 contributions for Australia, Brazil, Germany and 5 more countries and over 100 contributions for Canada, India, and United States. The surveys were conducted by numbeo.com from January, 2011 to February, 2014. See this sample survey for the United States, respondents were asked "Distance".
- Inefficiency index: Each country's inefficiency rating in regards to traffic. Long commute times, poor traffic laws and other factors are taken into consideration.
- Motor vehicles > Per 1,000 people: Motor vehicles include cars, buses, and freight vehicles but do not include two-wheelers. Population refers to midyear population in the year for which data are available."
- Ports and terminals: This entry lists major ports and terminals primarily on the basis of the amount of cargo tonnage shipped through the facilities on an annual basis. In some instances, the number of containers handled or ship visits were also considered.
Road > Motor vehicles per 1000 people:
Motor vehicles per 1000 people.
No date was available from the Wikipedia article, so we used the date of retrieval.
- Road > Motorway length: Total network length of all motorways in km.
- Road density > Km of road per 100 sq. km of land area: Road density is the ratio of the length of the country's total road network to the country's land area. The road network includes all roads in the country: motorways, highways, main or national roads, secondary or regional roads, and other urban and rural roads."
- Road network length > Km: Length of road network in kilometers in European Union countries.
- Roads > Traffic index: Traffic Index is a composite index of time consumed in traffic due to job commute, estimation of time consumption dissatisfaction, CO2 consumption estimation in traffic and overall inefficiencies in the traffic system.
- Roadways > Paved: This entry is derived from Transport > Roadways, which gives the total length of the road network and includes the length of the paved and unpaved portions.
- Roadways > Unpaved: This entry gives the total length of the road network and includes the length of the paved and unpaved portions.
SOURCES: International Civil Aviation Organisation, Civil Aviation Statistics of the World and ICAO staff estimates.; CIA World Factbooks 18 December 2003 to 28 March 2011; traffic; Numbeo traffic inefficiency index; International Road Federation, World Road Statistics and data files.; Wikipedia: List of countries by vehicles per capita; https://www.cia.gov/library/publications/the-world-factbook/fields/2085.html, Roadways.; International Road Federation, World Road Statistics and electronic files, except where noted.; CIA World Factbooks 2010, 2011, 2012, 2013
"Kenya Transport Stats", NationMaster. Retrieved from http://www.nationmaster.com/country-info/profiles/Kenya/Transport
"Kenya Transport Stats, NationMaster." 1970-2014. <http://www.nationmaster.com/country-info/profiles/Kenya/Transport>.
'Kenya Transport Stats, NationMaster', <http://www.nationmaster.com/country-info/profiles/Kenya/Transport> [assessed 1970-2014]
"Kenya Transport Stats", NationMaster [Internet]. 1970-2014. Avaliable from: <http://www.nationmaster.com/country-info/profiles/Kenya/Transport>.
"Kenya Transport Stats", NationMaster. Avaliable at: nationmaster.com. Assessed 1970-2014.
"Kenya Transport Stats, NationMaster," http://www.nationmaster.com/country-info/profiles/Kenya/Transport (assessed 1970-2014)
"Kenya Transport Stats", NationMaster, http://www.nationmaster.com/country-info/profiles/Kenya/Transport (last visited 1970-2014)
"Kenya Transport Stats", NationMaster, http://www.nationmaster.com/country-info/profiles/Kenya/Transport (as of 1970-2014)