• Update Date: 07/08/2019
  • Basemap Data Source: Arizona GIS REST Service (Link) (Copyright: Arizona Department of Transportation (ADOT))
  • Coverage: ADOT State Highway System
  • Layers: ADOT_Curve (9,624 events), State_Route_LRS (149 routes, North-East Bounds)
  • Format: ADOT_Curve_v02.gdb
  • Dataframe: GCS_North_American_1983 (GCS), NAD_1983_StatePlane_Arizona_East_FIPS_0201 (Meters)(PCS)
  • Download Link: Please contact Ai Research Group for instructions

Disclaimer – All the results and information for the horizontal curves on this website were derived ONLY for academic research purposes. The Ai Research Group derived the results based on the publicly available data at the time of processing, but it does not guarantee any changes in the data sharing the policy of the hosting agencies. Please contact the data hosting agencies for more information. The copyright of the data belongs to the data hosting source as the copyright text indicates. The Ai Research Group has internally evaluated and validated the results before it releases any results on this website, but it does not guarantee the quality and the accuracy of the results, nor imply any of its potential applications. Please use the data and the results at your risk, and please use the data ONLY for academic purposes.

  • Update Date: 6/29/2019
  • Basemap Data Source: Maryland’s GIS Data Catalog (Link) (Copyright: Maryland Department of Transportation (MDOT))
  • Coverage: Maryland State Highway System
  • Layers: MDOT_Curve (12,095 events), State_Route_LRS (479 routes, East-North Bounds)
  • Format: MDOT_Curve_v02.gdb
  • Dataframe: GCS_North_American_1983 (GCS), NAD_1983_StatePlane_Maryland_FIPS_1900 (Meters) (PCS)
  • Download Link: Please contact Ai Research Group for instructions

Disclaimer – All the results and information for the horizontal curves on this website were derived ONLY for academic research purposes. The Ai Research Group derived the results based on the publicly available data at the time of processing, but it does not guarantee any changes in the data sharing the policy of the hosting agencies. Please contact the data hosting agencies for more information. The copyright of the data belongs to the data hosting source as the copyright text indicates. The Ai Research Group has internally evaluated and validated the results before it releases any results on this website, but it does not guarantee the quality and the accuracy of the results, nor imply any of its potential applications. Please use the data and the results at your risk, and please use the data ONLY for academic purposes.

  • Update Date: 6/3/2019
  • Basemap Data Source: PennDOT ArcGIS REST Services (Link) (Copyright: Pennsylvania Department of Transportation (PennDOT))
  • Coverage: Pennsylvania State Highway System
  • Layers: PennDOT_Curve (47,107 events**), State_Route_LRS (505 routes, East-North Bounds)
  • Format: PennDOT_Curve_v01b.gdb
  • Dataframe: GCS_North_American_1983 (GCS), NAD_1983_StatePlane_Pennsylvania_North_FIPS_3701 (Meters) (PCS )
  • Download Link: Please contact Ai Research Group for instructions

** This inventory excludes parts of the PA066, PA218, PA641, PA653, PA830, I376, US001, US011, US019, US040, US219, US220, US222. Some segments of these routes need to be updated.

Disclaimer – All the results and information for the horizontal curves on this website were derived ONLY for academic research purposes. The Ai Research Group derived the results based on the publicly available data at the time of processing, but it does not guarantee any changes in the data sharing the policy of the hosting agencies. Please contact the data hosting agencies for more information. The copyright of the data belongs to the data hosting source as the copyright text indicates. The Ai Research Group has internally evaluated and validated the results before it releases any results on this website, but it does not guarantee the quality and the accuracy of the results, nor imply any of its potential applications. Please use the data and the results at your risk, and please use the data ONLY for academic purposes.

  • Update Date: 5/25/2019
  • Basemap Data Source: Alabama GIS REST Service (Link) (Copyright: Alabama Department of Transportation (ALDOT))
  • Coverage: ALDOT State Highway System
  • Layers: ALDOT_Curve (13,650events), State_Route_LRS (257 routes, Centerline)
  • Format: ALDOT_Curve_v02.gdb
  • Dataframe: GCS_North_American_1983 (GCS), NAD_1983_StatePlane_Alabama_East_FIPS_0101 (Meters)(PCS)
  • Download Link: Please contact Ai Research Group for instructions

Disclaimer – All the results and information for the horizontal curves on this website were derived ONLY for academic research purposes. The Ai Research Group derived the results based on the publicly available data at the time of processing, but it does not guarantee any changes in the data sharing the policy of the hosting agencies. Please contact the data hosting agencies for more information. The copyright of the data belongs to the data hosting source as the copyright text indicates. The Ai Research Group has internally evaluated and validated the results before it releases any results on this website, but it does not guarantee the quality and the accuracy of the results, nor imply any of its potential applications. Please use the data and the results at your risk, and please use the data ONLY for academic purposes.

  • Update Date: 5/14/2019
  • Basemap Data Source: CalTrans Division of Research, Innovation and System Information (DRISI) (Link) (Copyright: California Department of Transportation (CalTrans))
  • Coverage: California State Highway System
  • Layers: CalTrans_Curve (36,944 events), State_Route_LRS (254 routes, East-North Bounds)
  • Format: CalTrans_Curve_v02.gdb
  • Dataframe: GCS_NAD_1983_2011 (GCS), NAD_1983_2011_StatePlane_California_I_FIPS_0401_Ft_US (Feet) (PCS)
  • Download Link: Please contact Ai Research Group for instructions

Disclaimer – All the results and information for the horizontal curves on this website were derived ONLY for academic research purposes. The Ai Research Group derived the results based on the publicly available data at the time of processing, but it does not guarantee any changes in the data sharing policy of the hosting agencies. Please contact the data hosting agencies for more information. The copyright of the data belongs to the data hosting source as the copyright text indicates. The Ai Research Group has internally evaluated and validated the results before it releases any results on this website, but it does not guarantee the quality and the accuracy of the results, nor imply any of its potential applications. Please use the data and the results at your risk, and please use the data ONLY for academic purposes.

  • Update Date: 04/08/2019
  • Basemap Data Source: New Jersey Government GIS Data Set (Link) (Copyright: New Jersey Department of Transportation (NJDOT))
  • Coverage: New Jersey State Highway System
  • Layers: NJDOT_Curve (4,994 Events), State_Route_LRS (151 Route Sections)
  • Format: NJDOT_Curve_v02.gdb
  • Dataframe: GCS_North_American_1983 (GCS), NAD_1983_StatePlane_New_Jersey_FIPS_2900_Feet (Feet) (PCS)
  • Download Link: Please contact Ai Research Group for instructions

Disclaimer – All the results and information for the horizontal curves on this website were derived ONLY for academic research purposes. The Ai Research Group derived the results based on the publicly available data at the time of processing, but it does not guarantee any changes in the data sharing policy of the hosting agencies. Please contact the data hosting agencies for more information. The copyright of the data belongs to the data hosting source as the copyright text indicates. The Ai Research Group has internally evaluated and validated the results before it releases any results on this website, but it does not guarantee the quality and the accuracy of the results, nor imply any of its potential applications. Please use the data and the results at your risk, and please use the data ONLY for academic purposes.

  • Update Date: 02/05/2019
  • Basemap Data Source: ARDOT ArcGIS REST Services (Link) (Copyright: Arkansas Department of Transportation)
  • Coverage: Arkansas State Highway System
  • Layers: ARDOT_Curve (38,616 Events), State_Route_LRS (1905 Route Sections)
  • Format: ArDOT_Curve_v04.gdb
  • Dataframe: GCS_North_American_1983 (GCS), NAD_1983_UTM_Zone_15N (Meters) (PCS)
  • Download Link: Please contact Ai Research Group for instructions

Disclaimer – All the results and information for the horizontal curves on this website were derived ONLY for academic research purposes. The Ai Research Group derived the results based on the publicly available data at the time of processing, but it does not guarantee any changes in the data sharing policy of the hosting agencies. Please contact the data hosting agencies for more information. The copyright of the data belongs to the data hosting source as the copyright text indicates. The Ai Research Group has internally evaluated and validated the results before it releases any results on this website, but it does not guarantee the quality and the accuracy of the results, nor imply any of its potential applications. Please use the data and the results at your risk, and please use the data ONLY for academic purposes.

  • Update Date: 1/08/2019
  • Basemap Data Source: VTrans ArcGIS REST Services (Link) (Copyright: Vermont Agency of Transportation (VTrans))
  • Coverage: Vermont State Highway System
  • Layers: VTrans_Curve (10,542 Events), State_Route_LRS (104 Routes)
  • Format: VTrans_Curve_v03.gdb
  • Dataframe: GCS_North_American_1983 (GCS), NAD83_Vermont Transverse_Mercator_Custom (Meters) (PCS)
  • Download Link: Please contact Ai Research Group for instructions
  • Comment: VTrans has already established a state-wide horizontal curve inventory by a contractor in 2017. The results derived by Ai Research Group is for reference purposes. For the validated results, please directly contact VTrans for more information.

Disclaimer – All the results and information for the horizontal curves on this website were derived ONLY for academic research purposes. The Ai Research Group derived the results based on the publicly available data at the time of processing, but it does not guarantee any changes in the data sharing policy of the hosting agencies. Please contact the data hosting agencies for more information. The copyright of the data belongs to the data hosting source as the copyright text indicates. The Ai Research Group has internally evaluated and validated the results before it releases any results on this website, but it does not guarantee the quality and the accuracy of the results, nor imply any of its potential applications. Please use the data and the results at your risk, and please use the data ONLY for academic purposes.

  • Update Date: 12/08/2018
  • Basemap Data Source: MaineDOT ArcGIS REST Services (Link) (Copyright: Maine Department of Transportation (MaineDOT))
  • Coverage: Maine State Highway System
  • Layers: MaineDOT_Curve (7,518 Events), State_Route_LRS (131 Routes)
  • Format: MDOT_Curve_v02.gdb
  • Dataframe: GCS_North_American_1983 (GCS), NAD_1983_UTM_Zone_19N (Meters) (PCS)
  • Download Link: Please contact Ai Research Group for instructions

Disclaimer – All the results and information for the horizontal curves on this website were derived ONLY for academic research purposes. The Ai Research Group derived the results based on the publicly available data at the time of processing, but it does not guarantee any changes in the data sharing policy of the hosting agencies. Please contact the data hosting agencies for more information. The copyright of the data belongs to the data hosting source as the copyright text indicates. The Ai Research Group has internally evaluated and validated the results before it releases any results on this website, but it does not guarantee the quality and the accuracy of the results, nor imply any of its potential applications. Please use the data and the results at your risk, and please use the data ONLY for academic purposes.