Sec. 13a-255. Adoption and maintenance of the Connecticut Plane Coordinate System.
Sec. 13a-260. Pilot program to test fully autonomous vehicles.
Sec. 13a-262. Program re work zone speed control systems in highway work zone.
Sec. 13a-255. Adoption and maintenance of the Connecticut Plane Coordinate System. (a) For the purposes of this section:
(1) “NSRS” means the National Spatial Reference System or a successor program;
(2) “Metadata” means the information about a data element that provides context for that data element, such as the geodetic reference system utilized, applicable epoch, statement of relative accuracy and date of observation;
(3) “National Geodetic Survey” or “NGS” means the agency of the National Oceanic and Atmospheric Administration within the United States Department of Commerce, or its successor; and
(4) “Connecticut Plane Coordinate System” or “CPCS” means the system established pursuant to this section that is identical to the state plane coordinate system as defined for the state of Connecticut by the National Geodetic Survey.
(b) The most recent plane coordinates that have been established by the National Geodetic Survey based on the NSRS, for purposes of defining and stating the geographic positions or locations of points in relation to the surface of the earth within the state of Connecticut shall be known as the Connecticut Plane Coordinate System. The official geodetic datums to which geodetic coordinates are referenced within the state of Connecticut, including, but not limited to, latitude, longitude, ellipsoid height, orthometric height or dynamic height, shall be as defined within the NSRS.
(c) The detailed description of the CPCS by the NGS shall be adopted and maintained by the Commissioner of Transportation or the commissioner's designee. Additional systems may be published by the commissioner or the commissioner's designee.
(d) The plane coordinates of a point in relation to the earth's surface, to be used for expressing the geographic position or location of the point in the appropriate zone, if applicable, of the CPCS, shall consist of two distances expressed in meters and decimals of a meter, or international feet and decimals of an international foot. One of these distances, to be known as the “northing or y-coordinate”, shall give the grid distance north of the x-axis of the system origin; the other, to be known as the “easting or x-coordinate”, shall give the grid distance east of the y-axis of the system origin. The x-axis of any zone shall be at right angles to the central meridian of that zone. The y-axis of any zone shall be parallel with the central meridian of that zone. The x-axis shall be perpendicular to the y-axis. When applicable, height shall be the coordinate value of the vertical elements of the NSRS expressed as international feet or meters and identified as an ellipsoid height or an orthometric height. The international foot, typically referred to as the foot, shall be used to express all foot distances and coordinates. A definition of one international foot equals three thousand forty-eight ten-thousandths meters shall be used. Other units may be used in previous or additional coordinate systems as published by the Commissioner of Transportation or the commissioner's designee.
(e) The use of the term “Connecticut Plane Coordinate System” on any map, report of survey or other document shall be limited to coordinates based on the CPCS, as adopted and maintained pursuant to subsection (c) of this section.
(f) For the purposes of describing the location of any survey station or land boundary corner in the state of Connecticut, it shall be considered a complete, legal and satisfactory description of such location to give the position of such survey station or land boundary corner on the system of plane coordinates, with a height if applicable, as defined in this section. The method and source for establishing coordinates shall be described in the land or deed record. In all instances where a reference has been made to coordinates in land surveys or deeds, a statement of the metadata of observations shall be included in the record.
(g) Nothing contained in this section shall require descriptions of real estate to be based only on CPCS.
(h) The commissioner or the commissioner's designee may enter upon private property for the purpose of surveying, establishing or maintaining the survey. The commissioner or the commissioner's designee shall use care so that no unnecessary damage shall result to any private property and the state shall be liable to the owner of such property for any damage so caused.
(i) After the official NGS release or the authorization of any subsequent updates to the Connecticut Plane Coordinate System, and upon the approval of its use or update by the Commissioner of Transportation or the commissioner's designee, new state mapping projects shall be based on said system's current realization unless a different system is determined to be necessary. Mapping coordinates based on the CPCS shall include a statement as to their basis in the metadata. Mapping based on a different system shall contain projection information and a clear statement of purpose regarding the decision to use said system in the metadata. Where feasible, mapping projects based on different systems should also be made available in CPCS unless such provision would create an undue hardship or burden on the project creator. The provisions of this section shall not be construed to prohibit the appropriate use of other datums, geodetic reference frames or plane coordinate systems, nor shall the provisions of this section require the revision of any survey, mapping project, deed, record or other document prepared or recorded that utilized any other coordinate systems previously authorized by the state.
(1949 Rev., S. 2212; 1958 Rev., S. 13-97; 1963, P.A. 226, S. 255; 1969, P.A. 768, S. 134; P.A. 86-68; P.A. 91-53; P.A. 03-115, S. 44; P.A. 25-65, S. 1.)
History: 1963 act replaced previous provisions: See title history; 1969 act replaced highway commissioner with commissioner of transportation; P.A. 86-68 amended Subsec. (c) by changing the X coordinate from 600,000 feet to 1,000,000 feet and by changing the Y coordinate from 0 feet to 500,000 feet; P.A. 91-53 redefined the Connecticut coordinate system by establishing a coordinate system of 1927 and a coordinate system of 1983 and added a new Subsec. (h) re date by which the coordinate system of 1983 shall be the sole system for mapping; P.A. 03-115 amended Subsec. (a) to include the systems of plane coordinates established by the Connecticut Geodetic Survey in the Connecticut Coordinate System, effective June 18, 2003; P.A. 25-65 substantially revised section, including adding new Subsec. (a) re definitions, redesignating existing Subsec. (a) as Subsec. (b) and amended same by adding provision re Connecticut Plane Coordinate System, deleting existing Subsec. (b) re designation and responsibility of system, adding new Subsec. (c) re adoption and maintenance of CPCS by Commissioner of Transportation, redesignating existing Subsec. (c) as new Subsec. (d) and amended same by adding provision re plane coordinates, redesignating existing Subsec. (d) as new Subsec. (e) and amended same by adding provision re use of term “Connecticut Plane Coordinate System”, redesignating existing Subsec. (e) as new Subsec. (f) and amended same by adding provision re coordinates in land or deed record, redesignating existing Subsecs. (f) and (g) as new Subsecs. (g) and (h) and amended same to make conforming changes, deleting existing Subsec. (h) re Connecticut Coordinate System of 1983 and adding Subsec. (i) re new state mapping projects, effective January 1, 2026.
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Sec. 13a-260. Pilot program to test fully autonomous vehicles. Section 13a-260 is repealed, effective July 1, 2025.
(P.A. 17-69, S. 1; P.A. 19-119, S. 17; P.A. 25-65, S. 66.)
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Sec. 13a-262. Program re work zone speed control systems in highway work zone. (a) The department may establish a program to operate work zone speed control systems in a highway work zone. A work zone speed control system may be used to record the images of motor vehicles traveling on a highway (1) within a highway work zone, and (2) on which the speed limit, established using generally accepted traffic engineering practices, is forty-five miles per hour or greater.
(b) A work zone speed control system may be used provided (1) such system is operated by a work zone speed control system operator, (2) if, in accordance with the manual of uniform traffic control devices as approved and revised by the Office of State Traffic Administration, at least two conspicuous road signs are placed at a reasonable distance in advance of a highway work zone notifying drivers that a work zone speed control system may be in operation, (3) at least one of the signs described in subdivision (2) of this subsection indicates that the work zone speed control system is operational or is not operational, (4) an appropriate sign is conspicuously placed at the end of a highway work zone with a work zone speed control system that is operational, and (5) a notice identifying the location of a work zone speed control system is available on the Internet web site of the department.
(c) A work zone speed control system shall be used in a manner to only record images of motor vehicles that are exceeding the posted highway work zone speed limit by ten miles per hour or more in violation of the provisions of section 13a-263. Any recorded images collected as part of a work zone speed control system shall not be used for any surveillance purpose. At least two days prior to a work zone speed control system becoming operational, the department or work zone speed control system operator shall provide written notice of the date such system will be operational to the Division of State Police and the chief executive officer of the municipality where such system is to be located.
(d) The Commissioner of Transportation may (1) enter into agreements with vendors for the design, operation or maintenance, or any combination thereof, of work zone speed control systems, and (2) retain and employ consultants and assistants on a contract or other basis for rendering legal, financial, professional, technical or other assistance and advice necessary for the design, operation and maintenance of work zone speed control systems. If a vendor provides, deploys or operates a work zone control system, the vendor's fee may not be contingent on the number of violations issued or fines paid pursuant to the provisions of section 13a-263.
(June Sp. Sess. P.A. 21-2, S. 297; P.A. 24-40, S. 43; P.A. 25-65, S. 36.)
History: P.A. 24-40 amended Subsec. (a) to delete references to pilot program, replace provision re systems at not more than 3 locations with provision re operation of systems at not more than 15 highway work zones and replace reference to limited access highway with reference to highway and amended Subsec. (c) to replace provision re 15 miles per hour or more with provision re 10 miles per hour or more and replace provision re certifying system is operational with provision re written notice of date system will become operational to be provided to municipal chief executive officer at least 2 days prior to system becoming operational, effective July 1, 2024; P.A. 25-65 amended Subsec. (a) to delete provision re operation of systems at not more than 15 highway work zones, effective June 23, 2025.
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