After notice and hearing, and an opportunity to be heard by the carrier or carriers affected, the commission may require the establishment of passenger stations at cities and towns where such establishment is shown to be justified by the reasonable public needs. The commission shall give due consideration to the volume of traffic handled by the carrier or carriers to be affected, to and from the city or town where a station is proposed to be located, and the amount of revenue derived therefrom and the cost and expense of establishing and maintaining such station and the effect which the establishment of such station and the maintenance thereof will have upon the ability of the affected carrier or carriers to continue to perform their public service.