Roadway Information Database (RID)

The Roadway Information Database enables safety researchers to explore the relationships between driver, vehicle, and roadway.

Existing State Metadata
Supplemental Data

The supplemental data effort initiated with a feasibility study before SHRP 2 gave permission to proceed with data acquisition. The feasibility study addressed the availability and cost of acquiring data items specific to the SHRP 2 Safety and Reliability focus areas and integrating these data into the SHRP 2 RID. An initial list of over 30 potential supplemental data items was expanded to include roughly 125 items within four categories, including safety, reliability, common items to both safety and reliability, and policy. Input from both safety and reliability professionals helped to narrow this comprehensive list down to approximately 32 items. Using this prioritized list as a starting point, the research team contacted agency staff within the six NDS sites and private data sources, and recommended 20 data items for acquisition across the six NDS sites. Table below presents the top priority data items acquired by the project team that are included in the RID. The rest of the tables provide a summary by study site.

PriorityItemCategory
1Crash dataCommon
1Traffic information: AADTSafety
1Aerial imageryCommon
1Speed limit dataSafety
1Speed limit lawsPolicy
1Cell phone and text messaging lawsPolicy
1Automated enforcement lawsPolicy
1Alcohol-impaired and drugged driver lawsPolicy
1Graduated driver licensing (GDL) lawsPolicy
1State motor cycle helmet use lawsPolicy
1Seat belt use lawsPolicy
1Local climatological data (LCD) from NOAACommon
1Cooperative weather observer/other sourcesCommon
2Winter road conditions (from DOTs)Common
2Work zoneCommon
2511 informationCommon
2Trafic data: continuous counts (annual traffic report [ATR])Safety
2Traffic data: short duration countsSafety
2Changes to existing infrastructure conditionSafety
2Roadway capacity improvementsCommon
No.ItemPriorityCategoryData DescriptionIntegrationData Frequency
1Crash Data1Common2006 – 2013 Shapefile from FL DOTConflate to networkYearly
2Traffic Information – AADT1Safety2011 – 2013 Shapefile from FL DOTConflate to networkYearly
3Aerial Imagery1Common2009 – 2013 FL DOT aerial imagery by county in 1 foot resolution. 2013 NAIP aerial imagery by county in 1 meter resolution.NoneSingle Year
4Speed Limit Data1Safety2013 speed limit data from FL DOTConflate to networkSingle Year
5Speed Limit Laws1PolicyDocumented laws from 2011 – 2013NoneYearly
6Cell phone and text messaging laws1PolicyDocumented laws from 2011 – 2013NoneYearly
7Automated enforcement laws1PolicyDocumented laws from 2011 – 2013NoneYearly
8Alcohol-Impaired and Drugged Drivers laws1PolicyDocumented laws from 2011 – 2013NoneYearly
9Graduated driver licensing (GDL)laws1PolicyDocumented laws from 2011 – 2013NoneYearly
10State motor cycle helmet use laws1PolicyDocumented laws from 2011 – 2013NonYearly
11Seat Bet Use Laws1PolicyDocumented laws from 2011 – 2013NoneYearly
12Local Climatological Data (LCD) NOAA1CommonMonthly Quality Controlled Local Climatological Data (QCLCD) from 2011 – 2013 for 7 stations around NDS study siteAccess Database by StationMonthly
13Cooperative Weather Observer / Other Sources1CommonMonthly Global Historical Climatology Network (GHCN) data from 2011 – 2013. Includes 3 COOP stations, 120 CoCoRaHS stations, and 12 ASOS stations. Also have severe weather events for surrounding counties of NDS study site.Access Database by StationMonthly
14Winter Road Conditions (DOT)2CommonNot ApplicableNoneNA
15Work Zone2Common2011 – 2013 511 data including work zones impacting roadwayTBDYearly
16511 Information2Common2011 – 2013 511 data including work zones impacting roadwayTBDYearly
17Traffic Data – Continuous Counts (ATR)2Safety2011 – 2013 ATR shapefile data from FL DOTConflate to networkYearly
18Traffic Data – Short Duration Counts2Safety2011 – 2013 short duration shapefile data from FL DOTConflate to networkYearly
19Change in existing infrastructure condition2SafetyKml data from FL DOT of projects completed within 2011 – 2013Convert to GIS then conflateYearly
20Roadway Capacity Improvements2CommonKml data from FL DOT of projects completed within 2011 – 2013Convert to GIS then conflateYearly
No.ItemPriorityCategoryData DescriptionIntegrationData Frequency
1Crash Data1Common2006 – 2013 data delivered as a .DAT file from IN DOTExtract data, convert to GIS, conflate to networkYearly
2Traffic Information – AADT1Safety2011 – 2013 Shapefile from FL DOTConflate to networkYearly
3Aerial Imagery1Common2012 Indiana University GIS aerial imagery by county in 1 meter resolutionNoneSingle Year
4Speed Limit Data1Safety2011 speed limit data from FL DOTConflate to networkSingle Year
5Speed Limit Laws1PolicyDocumented laws from 2011 – 2013NoneYearly
6Cell phone and text messaging laws1PolicyDocumented laws from 2011 – 2013NoneYearly
7Automated enforcement laws1PolicyDocumented laws from 2011 – 2013NoneYearly
8Alcohol-Impaired and Drugged Drivers laws1PolicyDocumented laws from 2011 – 2013NoneYearly
9Graduated driver licensing (GDL)laws1PolicyDocumented laws from 2011 – 2013NoneYearly
10State motor cycle helmet use laws1PolicyDocumented laws from 2011 – 2013NonYearly
11Seat Bet Use Laws1PolicyDocumented laws from 2011 – 2013NoneYearly
12Local Climatological Data (LCD) NOAA1CommonMonthly Quality Controlled Local Climatological Data (QCLCD) from 2011 – 2013 for 5 stations around NDS study siteAccess Database by StationMonthly
13Cooperative Weather Observer / Other Sources1CommonMonthly Global Historical Climatology Network (GHCN) data from 2011 – 2013. Includes 16 COOP stations, 81 CoCoRaHS stations, and 3 ASOS stations. Also have severe weather events for surrounding counties of NDS study site.Access Database by StationMonthly
14Winter Road Conditions (DOT)2Common2011 – 2013 511 data from CARS ProgramTBDNA
15Work Zone2Common2011 – 2013 511 data from CARS Program including work zone impactTBDYearly
16511 Information2Common2011 – 2013 511 data from CARS ProgramTBDYearly
17Traffic Data – Continuous Counts (ATR)2Safety2011 – 2013 ATR data from IN DOTConflate to networkYearly
18Traffic Data – Short Duration Counts2Safety2011 – 2013 short duration count data from IN DOTConflate to networkYearly
19Change in existing infrastructure condition2SafetyTBDTBDYearly
20Roadway Capacity Improvements2CommonTBDTBDYearly
No.ItemPriorityCategoryData DescriptionIntegrationData Frequency
1Crash Data1Common2006 – 2013 data delivered in access from NY DOTConvert to GIS using Lat/Long, conflate to networkYearly
2Traffic Information – AADT1Safety2011 – 2013 data in Excel from NY DOTJoined to GIS, conflate to networkYearly
3Aerial Imagery1Common2011 NAIP aerial imagery by county in 1 meter resolutionNoneSingle Year
4Speed Limit Data1Safety2011 speed limit data from FL DOTConflate to networkSingle Year
5Speed Limit Laws1PolicyDocumented laws from 2011 – 2013NoneYearly
6Cell phone and text messaging laws1PolicyDocumented laws from 2011 – 2013NoneYearly
7Automated enforcement laws1PolicyDocumented laws from 2011 – 2013NoneYearly
8Alcohol-Impaired and Drugged Drivers laws1PolicyDocumented laws from 2011 – 2013NoneYearly
9Graduated driver licensing (GDL)laws1PolicyDocumented laws from 2011 – 2013NoneYearly
10State motor cycle helmet use laws1PolicyDocumented laws from 2011 – 2013NonYearly
11Seat Bet Use Laws1PolicyDocumented laws from 2011 – 2013NoneYearly
12Local Climatological Data (LCD) NOAA1CommonMonthly Quality Controlled Local Climatological Data (QCLCD) from 2011 – 2013 for 3 stations around NDS study siteAccess Database by StationMonthly
13Cooperative Weather Observer / Other Sources1CommonMonthly Global Historical Climatology Network (GHCN) data from 2011 – 2013. Includes 14 COOP stations, 68 CoCoRaHS stations, and 14 ASOS stations. Also have severe weather events for surrounding counties of NDS study site.Access Database by StationMonthly
14Winter Road Conditions (DOT)2Common2011 – 2013 511 data including weather events from NYDOT and NITTECConvert to GIS using Lat/Long, conflate to networkNA
15Work Zone2Common2011 – 2013 data including work zones impacting roadway from NYDOT and NITTECConvert to GIS using Lat/Long, conflate to networkYearly
16511 Information2Common2011 – 2013 511 data from NY DOT and NITTECConvert to GIS using Lat/Long, conflate to networkYearly
17Traffic Data – Continuous Counts (ATR)2Safety2011 – 2013 ATR data from NY DOTJoin data to shapefile, conflate to networkYearly
18Traffic Data – Short Duration Counts2Safety2011 – 2013 short duration count data from NY DOTJoin data to shapefile, conflate to networkYearly
19Change in existing infrastructure condition2SafetyChanges to Roadway DataConflate to networkYearly
20Roadway Capacity Improvements2CommonRoadway Improvement DataConflate to networkYearly
No.ItemPriorityCategoryData DescriptionIntegrationData Frequency
1Crash Data1Common2006 – 2013 data delivered as Excel from HSISConvert to GIS using LRS, conflate to networkYearly
2Traffic Information – AADT1Safety2011 – 2013 Shapefile from NC DOTConflate to networkYearly
3Aerial Imagery1Common2012 NAIP aerial imagery by county in 1 meter resolutionNoneSingle Year
4Speed Limit Data1Safety2011 speed limit data from FL DOTConflate to networkSingle Year
5Speed Limit Laws1PolicyDocumented laws from 2011 – 2013NoneYearly
6Cell phone and text messaging laws1PolicyDocumented laws from 2011 – 2013NoneYearly
7Automated enforcement laws1PolicyDocumented laws from 2011 – 2013NoneYearly
8Alcohol-Impaired and Drugged Drivers laws1PolicyDocumented laws from 2011 – 2013NoneYearly
9Graduated driver licensing (GDL)laws1PolicyDocumented laws from 2011 – 2013NoneYearly
10State motor cycle helmet use laws1PolicyDocumented laws from 2011 – 2013NonYearly
11Seat Bet Use Laws1PolicyDocumented laws from 2011 – 2013NoneYearly
12Local Climatological Data (LCD) NOAA1CommonMonthly Quality Controlled Local Climatological Data (QCLCD) from 2011 – 2013 for 6 stations around NDS study siteAccess Database by StationMonthly
13Cooperative Weather Observer / Other Sources1CommonMonthly Global Historical Climatology Network (GHCN) data from 2011 – 2013. Includes 18 COOP stations, 129 CoCoRaHS stations, and 2 ASOS stations. Also have severe weather events for surrounding counties of NDS study site.Access Database by StationMonthly
14Winter Road Conditions (DOT)2Common2011 – 2013 Traffic Incident Management System data from NC DOT in shapefile with weather eventsConflate to networkNA
15Work Zone2Common2011 – 2013 Traffic Incident Management System data from NC DOT in shapefile with work zone impactsConflate to networkYearly
16511 Information2Common2011 – 2013 Traffic Incident Management System data from NC DOT in shapefileConflate to networkYearly
17Traffic Data – Continuous Counts (ATR)2Safety2011 – 2013 ATR data from NC DOTConvert to GIS, conflate to networkYearly
18Traffic Data – Short Duration Counts2Safety2011 – 2013 short duration count data from NC DOTConflate to networkYearly
19Change in existing infrastructure condition2SafetyTBDTBDYearly
20Roadway Capacity Improvements2CommonTBDTBDYearly
No.ItemPriorityCategoryData DescriptionIntegrationData Frequency
1Crash Data1Common2006 – 2013 data delivered in access from PA DOTConvert to GIS using Lat/Long, conflate to networkYearly
2Traffic Information – AADT1Safety2011 – 2013 Shapefile from PA DOTConflate to networkYearly
3Aerial Imagery1Common2013 NAIP aerial imagery by county in 1 meter resolutionNoneSingle Year
4Speed Limit Data1Safety2013 speed limit data from FL DOTConflate to networkSingle Year
5Speed Limit Laws1PolicyDocumented laws from 2011 – 2013NoneYearly
6Cell phone and text messaging laws1PolicyDocumented laws from 2011 – 2013NoneYearly
7Automated enforcement laws1PolicyDocumented laws from 2011 – 2013NoneYearly
8Alcohol-Impaired and Drugged Drivers laws1PolicyDocumented laws from 2011 – 2013NoneYearly
9Graduated driver licensing (GDL)laws1PolicyDocumented laws from 2011 – 2013NoneYearly
10State motor cycle helmet use laws1PolicyDocumented laws from 2011 – 2013NonYearly
11Seat Bet Use Laws1PolicyDocumented laws from 2011 – 2013NoneYearly
12Local Climatological Data (LCD) NOAA1CommonMonthly Quality Controlled Local Climatological Data (QCLCD) from 2011 – 2013 for 1 station around NDS study siteAccess Database by StationMonthly
13Cooperative Weather Observer / Other Sources1CommonMonthly Global Historical Climatology Network (GHCN) data from 2011 – 2013. Includes 8 COOP stations, 10 CoCoRaHS stations, and 0 ASOS stations. Also have severe weather events for surrounding counties of NDS study site.Access Database by StationMonthly
14Winter Road Conditions (DOT)2Common2011 – 2013 511 data including weather events from PA DOTConvert to GIS using Lat/Long, conflate to networkNA
15Work Zone2Common2011 – 2013 511 data including work zones from PA DOTConvert to GIS using Lat/Long, conflate to networkYearly
16511 Information2Common2011 – 2013 511 data from PA DOTConvert to GIS using Lat/Long, conflate to networkYearly
17Traffic Data – Continuous Counts (ATR)2Safety2011 – 2013 ATR data from PA DOTReduce data, convert to GIS, conflate to networkYearly
18Traffic Data – Short Duration Counts2Safety2011 – 2013 short duration count data from PA DOTConflate to networkYearly
19Change in existing infrastructure condition2Safety2011 – 2013 projects in shapefile from PA DOTConflate to networkYearly
20Roadway Capacity Improvements2Common2011 – 2013 projects in shapefile from PA DOTConflate to networkYearly
No.ItemPriorityCategoryData DescriptionIntegrationData Frequency
1Crash Data1Common2006 – 2013 data in Excel from WA DOTConvert to GIS using LRS, conflate to networkYearly
2Traffic Information – AADT1Safety2011 – 2013 Shapefile from WA DOTConflate to networkYearly
3Aerial Imagery1Common2011 NAIP aerial imagery by county in 1 meter resolutionNoneSingle Year
4Speed Limit Data1Safety2011 speed limit data from WA DOTConflate to networkSingle Year
5Speed Limit Laws1PolicyDocumented laws from 2011 – 2013NoneYearly
6Cell phone and text messaging laws1PolicyDocumented laws from 2011 – 2013NoneYearly
7Automated enforcement laws1PolicyDocumented laws from 2011 – 2013NoneYearly
8Alcohol-Impaired and Drugged Drivers laws1PolicyDocumented laws from 2011 – 2013NoneYearly
9Graduated driver licensing (GDL)laws1PolicyDocumented laws from 2011 – 2013NoneYearly
10State motor cycle helmet use laws1PolicyDocumented laws from 2011 – 2013NonYearly
11Seat Bet Use Laws1PolicyDocumented laws from 2011 – 2013NoneYearly
12Local Climatological Data (LCD) NOAA1CommonMonthly Quality Controlled Local Climatological Data (QCLCD) from 2011 – 2013 for 7 stations around NDS study siteAccess Database by StationMonthly
13Cooperative Weather Observer / Other Sources1CommonMonthly Global Historical Climatology Network (GHCN) data from 2011 – 2013. Includes 22 COOP stations, 123 CoCoRaHS stations, and 5 ASOS stations. Also have severe weather events for surrounding counties of NDS study site.Access Database by StationMonthly
14Winter Road Conditions (DOT)2Common2011 – 2013 511 data including weather events from WA DOTData feed to GIS, conflate to networkNA
15Work Zone2Common2011 – 2013 511 data including work zones from WA DOTData feed to GIS, conflate to networkYearly
16511 Information2Common2011 – 2013 data from WA DOTData feed to GIS, conflate to networkYearly
17Traffic Data – Continuous Counts (ATR)2Safety2011 – 2013 ATR data in shapefile from WA DOTConflate to networkYearly
18Traffic Data – Short Duration Counts2Safety2011 – 2013 short duration count data in shapefile from WA DOTConflate to networkYearly
19Change in existing infrastructure condition2Safety2011 – 2013 projects completed from WA DOTConvert to GIS using Lat/Long, conflate to networkYearly
20Roadway Capacity Improvements2Common2011 – 2013 projects completed from WA DOTConvert to GIS using Lat/Long, conflate to networkYearly
Mobile Data S04B

The mobile data collection contractor, Fugro Roadware, was required to collect the following roadway attributes:

  • Horizontal curvature:
    • Radius
    • Length
    • PC
    • PT
    • Direction of curve (left or right based on driving direction)
  • Grade
  • Cross-slope/Superelevation
  • Lanes: number, width, and type (thru, turn, passing, acceleration, car pool, etc.)
  • Shoulder type/curb (and paved width, if it exists)
  • All MUTCD signs
  • Guardrails/Barriers
  • Median presence: type (depressed, raised, flush, barrier)
  • Intersection: location, number of approaches, and control (uncontrolled, all-way stop, two-way stop, yield, signalized, roundabout). Ramp termini are considered intersections. Median presence: type (depressed, raised, flush, barrier
  • Rumble strip presence: location (centerline, edgeline, shoulder)
  • Lighting presence

Mobile Data Accuracy Requirements

Data ElementMinimum Accuracy Requirement (+/-)
Curvature Radius

100 ft. (curves less than 1,500 ft. radius)

250 ft. (curves between 1,500 ft. and 6,000 ft. radius)

Difference between radii <13% of radius as defined by S04A team (curves over 6,000 ft. radius)

Curvature Length100 ft.
PC50 ft.
PT50 ft.
Grade (+ or -)0.5%
Cross-slope / Superelevation1.0%
Lane Width1 ft.
Paved Shoulder Width1 ft.
Inventory Features (Signs) Location7 ft.

Fugro is the world’s leading, independent provider of geo-intelligence and asset integrity solutions for large constructions, infrastructure and natural resources. We provide the technical data and information required to design, construct and maintain your structures and infrastructure in a safe, reliable and efficient manner.

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SO4B Metadata (XLS Spreadsheet)

Common Elements with State Data (PDF)

Data Collection Plans
Florida Collection Plan (PDF)
Indiana Collection Plan (PDF)
New York Collection Plan (PDF)
North Carolina Collection Plan (PDF)
Pennsylvania Collection Plan (PDF)
Washington Collection Plan (PDF)

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