%0 Journal Article %T Implementation of Gravity Model to Estimation of Transportation Market Shares %A Przemys aw Krata %J Archives of Transport %D 2010 %I Versita %R 10.2478/v10174-010-0005-2 %X The theoretical consideration presented in the paper is inspired by market gravity models, as an interesting attitude towards operations research on a market. The transportation market issues are emphasized. The mathematical model of relations, taking place between transportation companies and their customers on the market, which is applied in the course of the research is based on continuous functions characteristics. This attitude enables the use of the field theory notions. The resultant vector-type utility function facilitates obtaining of competitive advantage areas for all transportation companies located on the considered transportation market. %U http://versita.metapress.com/content/n513187308817039/?p=f91ac98718f04f31b78c6589c48deb5a&pi=4