Streetlight AADT
Average Annual Daily Traffic (AADT) count data for 4.5 million miles of roadway
StreetLight AADT covers nearly every road in the U.S. and Canada, providing traffic estimates for all road segment types, including highways, low-volume, and recently developed roads. Get more granular monthly and hourly All Vehicles traffic counts split by vehicle weight categories for historical time periods. Our on-demand metrics include:
- AADT (Annual Average Daily Traffic)
- AAHT (Annual Average Hourly Traffic)
- MADT (Monthly Average Daily Traffic)
StreetLight was contracted by the Federal Highway Administration to investigate how Big Data can be used to estimate AADT
StreetLight collaborated with FHWA, 18 state DOTs, and academics to evaluate how Big Data can significantly reduce AADT costs to state DOTs and MPOs and improve coverage of up-to-date traffic counts. Results from this study informed StreetLight’s AADT methodology.
View the compiled research report, “Non-Traditional Methods to Obtain Annual Average Daily Traffic (AADT) Evaluation and Analysis.” Download the report here.
Defensible and validated AADT metrics help accelerate mobility projects
Over the past few years, Departments of Transportation (DOTs) in the U.S. have used StreetLight’s AADT metrics to meet their reporting requirements, including the Highway Performance Reporting System (HPMS). Cities and MPOs can utilize AADT metrics to fill data gaps and boost their infrastructure grant applications. With AADT metrics, you can:
- Time-consuming process of data collection, analysis, and approval
- Expensive
- Lack of geographic coverage and seasonality issues
- Safety hazards with staff in the field
- Fails to capture seasonal traffic
- Available on demand, on your desktop
- Cost-effective with traffic counts available for a whole region
- Counts available for nearly all road segments, including rural roads
- 100% safe alternative
- Hourly, daily, weekly, monthly, and annual counts
- Ability to compare recent and historical AADT for trend analysis
- Historical traffic estimates based on FHWA-compliant light-, medium-, and heavy-duty vehicles categories
StreetLight AADT Validation
- StreetLight’s latest AADT Metrics are validated with nearly 1,724 unique permanent counter locations across the U.S. and 2,500+ permanent counter data points across Canada
- R2 of 0.98 for the U.S. and R2 of 0.97 for Canada
- StreetLight’s AADT values correlate very closely with AADT values from permanent counters
Get AADT, AAHT and MADT counts for 8 or 80,000 locations and more
- Get traffic counts for all intersections around the project area
- Estimate how a proposed project impacts existing traffic conditions
- Go back in time to measure impact by looking at hourly, daily, or weekly counts for specific dates
- Quickly and easily calculate VMT
- Leverage counts to plan for Bipartisan Infrastructure Law (BIL) investments
- Fulfill HPMS and MIRE reporting requirements
- Scan locations to access existing roadway conditions and plan maintenance
- Determine crash rates
- Calculate the level of service for planning or design analysis
When traditional traffic counters and surveys fail to capture the nuances of ever-changing traffic trends, transportation analytics can fill that gap and add richness to transportation planning and modeling.
For transportation professionals, AADT is fundamental. We unpack what AADT is, how it differs from other fundamental roadway metrics, and how measurement is going digital to fill data gaps and add richness to planning and modeling.
Do you need data to inform your next project?
Talk to StreetLight about your needs, and join us in shaping a more efficient, sustainable world.
Here are some resources to help you go a step further: