Section 2
SEC. 2. For the purposes of the monorail transportation service intended in this Act, the grantee hereby binds itself to use equipment, apparatuses, structures and appurtenances that are modern, safe and first class in every respect and the monorail transportation service, together with requisite installations, shall be maintained at all times in a satisfactory manner so as to be adequate, convenient, efficient and economical. It shall be the further duty of the grantee, its successors or assigns, to modify, improve and change the monorail transportation service in such manner and to such extent as the progress of science, technology and the public need may make reasonable and proper: Provided, That the plans and specifications shall be approved by the city and municipal authorities concerned, the Commissioner of Public Highways and the Secretary of Public Works and Communications.