Specifications include, but are not limited to: VRT anticipates that the selected Offeror will provide and shall be responsible for design, studies, planning or other professional services. The selected Offeror(s) shall provide and be responsible for necessary planning, design and related professional services for the work, including but not limited to; transit planning for fixed route, fixed guideway and autonomous transit, alternatives/alignment analyses, architectural, site civil design, traffic impacts, mechanical, electrical, and plumbing designs, construction documents and construction engineering, as well as any related professional services such as surveying, GIS, structural, environmental and geotechnical engineering, etc. All subcontractors will be subject to approval by VRT. Notwithstanding any such approval by VRT, the successful offeror(s) shall itself be solely responsible for the performance of all work, and for compliance with the price and other terms provided in the contract. The successful (s) shall cause the appropriate provisions of its proposal and the contract to be inserted in all subcontracts. VRT’s consent to or approval of any subcontract or subcontractor proposed by a successful offeror(s) shall not create or purport to create any obligation of VRT to any such subcontractor, or any form of contractual relationship between VRT and the subcontractor. Any successful offeror(s) who obtains such approval or consent of VRT shall be required to insert a clause so providing in all subcontracts. The agreement(s) resulting from this RFP will commence as of the date of execution of the agreement(s) and will terminate as noted in said agreement. Assignments or task orders will be made on an on-call or as-needed basis.