14 September 2011
Traveling expenses which incurred on travel to city other than origin city, suppose you travel from Delhi to Chennai, the fare of Delhi to Chennai and return is the travel expenses
Conveyance is the travel cost with in the city which you incurring with in Chennai & Delhi.
15 September 2011
Conveyance is locally incurrence whether Fixed or on Variable basis whereas Travelling is the cost incurred to make journey possible within two stations by any means. Broadly conveyance is covered within the umbrella of Travelling but point and period of incidence differentiate the nature of head of expense/cost.