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Estudos de Demanda Linha 4 do Metrô do Rio de Janeiro

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(5)<br />

(6)<br />

(7)<br />

, substituin<strong>do</strong> (8)<br />

(9)<br />

Sen<strong>do</strong> a função cumulativa <strong>de</strong> <strong>de</strong>nsida<strong>de</strong> <strong>de</strong> a probabilida<strong>de</strong> <strong>de</strong> escolha da<br />

alternativa<br />

perante to<strong>do</strong> o conjunto <strong>de</strong> escolha é da<strong>do</strong> por:<br />

(10)<br />

Assumin<strong>do</strong> que a porção estocástica siga a distribuição <strong>de</strong> Gumbel:<br />

(11)<br />

Substituin<strong>do</strong> e resolven<strong>do</strong> a integral obtém-se:<br />

(12)<br />

A função po<strong>de</strong> ser representada pelo vetor <strong>de</strong> atributos e o vetor <strong>de</strong> parâmetros<br />

(13)<br />

37

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