After transportation planning is project development, which is also known as the project-planning process, the environmental process, or the National Environmental Policy Act (NEPA) process. Project development occurs on individual projects, ranging in size from small (e.g., new lane striping) to very large (e.g., a new transit or highway project). Whether small or large, projects follow the transportation-planning process. In other words, projects must appear in the TIP and/or STIP; the public must have an opportunity to review and comment on projects; and projects must be approved by transportation officials. The project-development process is critical because it links the planning process with the actual project location, design, and eventual construction and operation.