CDOT-OTIS Online Transportation Information System

A Unique (3 Number - 1 Letter) Highway Identification Code or Designating for a State Highway, Business Route, U.S. Route or Tolled Facility. Odd numbers typically run North and South and Even numbers typically Run East and West.

Route and Route Log are used commonly to describe a single State Facility. This is a Key for Dynseg Activities within GeoCoding. International Roughness Index (IRI) is the most common way world wide to describe road roughness. By definition[1], IRI is the accumulated suspension (vehicle) stroke in a mathematical quarter car model, divided by the distance traveled by the model during a simulated ride at 80 km/h. If the accumulated stroke is measured in inches and the traveled distance in miles, we get the unit [inch/mile] for IRI. The SI-unit for IRI is [mm/m]. When calculating IRI, the quarter car parameters for masses, damping and stiffness must be set to represent ”the Golden Car”. The parameters (normalized to ms = 1) for the Golden Car are:

Title	Type	Description
COHPMS	Table	This dataset contains roadway sections in the State's Sample Panel that are under the jusidiction of cities and counties. The Sample Panel provides detailed statistical data on a randomly selected sample of roadway sections in the State's public roadway inventory to meet Federal reporting requirements for the Highway Performance Monitoring System (HPMS).
TCORIS_OffSystem	Table	The TCORIS_OffSystem table is a collection of data items that pertain to roadway attributes for roadways that are maintained by local governments for the purpose of determining Highway Users Tax Fund eligibility.
TraffOff	LineEvent
AnchorOn	Table	The AnchorOn table is a Collection of Inventory Items, Features, Events or Split Point Locations that can be Field Varified and/or could be assigned a Real World Coordinate. Structures, Junctions, Crossings and Intersections are some Examples.
ClassOn	Table	The ClassOn table is a collection of events that identify the various Roadway Usage Categories, Forest Service, Restriction Details, Functional Classifications, Route Signage, Populations, some Government Areas, Boundaries, Limitations and Scenic Byways.
CondOn	Table	The CondOn table is a collection of events that identify and profile roadway pavement conditions like roughness, rutting, faulting, fatigue, percent cracking along with various other categories used to rate the quality of a roadway segment.
CurveOn	Table	Curves
DescOn	Table	DescOn is a table that contains highway segment descriptions from the GRDMS geodatabase.
FwyOn	Table	The FwyOn Table was removed in the Transys Optimization Project.
GradeOn	Table	Grade
HOVTOn	Table	RETIRED. The HOVTOn table is a collection of events that identify Roadway Segments that have High-Occupancy Lanes, Restricted Lanes, Reversable Lanes, Express or Toll Lanes.
HPMSSTE	Table	This dataset contains roadway sections in the State's Sample Panel that are under CDOT's jusidiction. The Sample Panel provides detailed statistical data on a randomly selected sample of roadway sections in the State's public roadway inventory to meet Federal reporting requirements for the Highway Performance Monitoring System (HPMS).
IntchOn	Table	The IntchOn Table and the Interchages Feature Class hold data and geometry for the Major Interchanges on the State Highway System.
IntersectOn	Table	The IntersectOn table is a New Collection that Describes the Node Point where Roadway Objects are Crossing each other - i.e Local-Road Intersections, Highway Junctions, Exits, Rail Roads, Interchanges, River Crossings, Culverts and Structures.
limOn	Table	The LimOn table is a small Collection that defines the Limits of each State Route within the Colorado LRS. LimOn summarizes each Highway with a (Min) Measure location and a (Max) Measure location along with a general descrition of Route.
MileGroupsOn	Table	MileGroupsOn is a collection of events to help CDOT understand and manage Mile Marker posting and locations.
RampsOn	Table	The RampsOn table is a Collection of On Ramps and Exit Ramps including a few Design Specifications, a few classicication fields and a few Traffic Volume and Traffic Related items that have a Traffic Count Stations on the State Highway System. *
RegOn	Table	The RegOn table is a Collection of Events that Provide Detailed Information about various Maintenance and Patrol Boundaries, Engineerion Regions, Planning Areas, MPOs, Land Owners, State Senate Districts and House Districts.
RrxOn	Table	The RrxOn table is a Single Event that Provides Detailed Information about various Rail Road Crossings on the State Highway System.
SpeedOn	Table	The SpeedOn table is a Single Event that Provides Detailed Information about Posted Speed Limits on the State Highway System.
StateRoutes	Table	StateRoutes is a small table that defines the limits of each Route within the Colorado LRS. StateRoutes Summarizes each route Log with a (Min) Measure location and a (Max) Measure location along with a narative description of each Highway.
SurvSte	Table	REMOVED
TraffOn	Table	The TraffOn table is a collection of Traffic Volume and Traffic related events that have Field Count Stations on the State Highway System.
XsecOn	Table	The XsecOn table is a collection of events that deal with road design specifications, dimensions, cross section, safety features and construction standards. The contents of XsecOn are commonly called Geometrics.
StrOn	Table	This table is a collection of point events that provide detailed information about major bridges and culverts on the State Highway System.
Abandonments	FeatureClass	Old Parts of the State Highways System that have been swaped for traded to a local jurisdiction.
Highways-DMU	FeatureClass	The Roadway Centerline. Type 1) Undivided Roads, Type 2) Divided Roads, Type 3) Plus 3 lanes, Type 6) Toll Roads, Type 7) Fully Divided Secondary Lanes
Trafstationlocste	Table
TrafStation	Table	The TrafStation table is collection of Traffic Count Stations on the State Highway System. Please note that OTIS also uses a companion table name TraffStation, which applies to the Count Locations table in Highway Data Explorer --> Traffic Statistics tab.
MALTOn	Table	This on system table holds data for Managed Access Lane (MAL) and Toll Lane events. This includes information about High Occupancy Vehicle (HOV) lanes.
TraffStation	Table	The TraffStation table is collection of Traffic Count Stations on the State Highway System. Please note that OTIS also uses a companion table name TrafStation, which applies to the count station location fields in the tables within Traffic Data Explorer.
SUR_CDOT_ROW_PRJ_LINES	FeatureClass	SUR_CDOT_ROW_PRJ_LINES is the former name for our current RealProperty.ROW_PROJECT_ARCHIVE SDE feature class used for the OTIS Highway Data Explorer --> Documents tab --> ROW Plans table.