1. As used in sections 238.200 to 238.275, the following terms mean:

(1) “Board”, the board of directors of a district;

(2) “Commission”, the Missouri highways and transportation commission;

(3) “District”, a transportation development district organized under sections 238.200 to 238.275;

(4) “Local transportation authority”, a county, city, town, village, county highway commission, special road district, interstate compact agency, or any local public authority or political subdivision having jurisdiction over any bridge, street, highway, dock, wharf, ferry, lake or river port, airport, railroad, light rail or other transit improvement or service;

(5) “Project” includes any bridge, street, road, highway, access road, interchange, intersection, signing, signalization, parking lot, bus stop, station, garage, terminal, hangar, shelter, rest area, dock, wharf, lake or river port, airport, railroad, light rail, or public mass transportation system and any similar or related improvement or infrastructure. In the case of a district located in a home rule city with more than four hundred thousand inhabitants and located in more than one county, whose district boundaries are contained solely within that portion of such a home rule city that is contained within a county with a charter form of government and with more than six hundred thousand but fewer than seven hundred thousand inhabitants, the term project shall also include the operation of a street car or other rail-based or fixed guideway public mass transportation system, and the revenue of such district may be used to pay for the design, construction, ownership and operation of such a street car or other rail-based or fixed guideway public mass transportation system, but not the operation of a bus system located within such district, by such district or such municipality, or by a local transportation authority having jurisdiction within such municipality;

(6) “Public mass transportation system”, a transportation system owned or operated by a governmental or quasi-governmental entity, employing motor buses, rails, or any other means of conveyance, by whatsoever type of power, operated for public use in the conveyance of persons, mainly providing local transportation service within a municipality or a single metropolitan statistical area.

2. For the purposes of Sections 11(c), 16 and 22 of Article X of the Constitution of Missouri, section 137.073, and as used in sections 238.200 to 238.275, the following terms shall have the meanings given:

(1) “Approval of the required majority” or “direct voter approval”, a simple majority;

(2) “Qualified electors”, “qualified voters” or “voters”:

(a) Within a proposed or established district, except for a district proposed under subsection 1 of section 238.207, any persons residing therein who have registered to vote pursuant to chapter 115; or

(b) Within a district proposed or established under subsection^* 1 or 5 of section 238.207 which has no persons residing therein who have registered to vote pursuant to chapter 115, the owners of record of all real property located in the district, who shall receive one vote per acre, provided that if a registered voter subsequent to the creation of the district becomes a resident within the district and obtains ownership of property within the district, such registered voter must elect whether to vote as an owner of real property or as a registered voter, which election once made cannot thereafter be changed;

(3) “Registered voters”, persons qualified and registered to vote pursuant to chapter 115.