Traffic Operation Assessment Systems Tool (TOAST)
ODOT’s mission is to provide easy movement of people and goods from place to place. In order to continue this mission, Ohio is currently undergoing a shift in focus toward a more operationally centered mindset for our transportation system. Through our Transportation Systems Management and Operations (TSMO) plan and program, we are working to maximize the efficiency and safety of our current transportation network.
In an effort to make data-driven decisions and determine operationally sensitive corridors throughout the state, we have developed the Traffic Operations Assessment Systems Tool (TOAST).
About TOAST Data Calculations
- Routes are segmented into the State Priority System with breaks at the urban area boundaries, interchange center points, and road functional class changes. Where possible, data is provided directionally.
- Multiple data categories make up TOAST. For each category, data ranges were normalized into values of 0-10, then multiplied by a weighting factor.
- The total score for a route is calculated as a percent based on the score for each category divided by the total possible maximum score.
In general, the higher the percent, the better the route is performing; whereas, the lower the percent, the more likely a route is to benefit from application of TSMO strategies.
TOAST Data Category Descriptions
BOTTLENECKS
A potential bottleneck is detected when speeds on a segment drop to 65% of reference speeds and cause at least a two-minute delay.
PASS-THROUGH:
any part of the bottleneck(s) impacts the corridor
ORIGINATION:
the bottleneck(s) begins in the corridor
TRAVEL TIME
TRAVEL TIME PERFORMANCE:
Percent of time motorists can travel at or near (90%) of free-flow speed
TRAVEL TIME INDEX:
Ratio of the travel time during specific time of day periods to the time required to make the same trip at free-flow speeds
TSMO SAFETY
REAR END PERCENT:
Percent of total crashes that are rear end
CRASH SEVERITY IMPACT:
Impact of crashes based on severity
TRAFFIC INCIDENT MANAGEMENT
INCIDENT CLEARANCE:
The time from report of an incident until the entire scene is cleared.
SECONDARY CRASHES:
Percent of crashes that occurred as a result of a previous incident.
TRAFFIC VOLUME DATA
VOLUME PER LANE:
Volume of traffic per lane, calculated based on a weighted average for each segment.
FREIGHT CORRIDORS:
Weighted average of percent trucks (avg. daily truck volume ÷ avg. daily total volume).
Online TOAST Ratings Map
2022 TOAST Reports
- 2022 Toast File (.xlsx)
- TOAST Categories and Charts
- 2022 TOAST Updates
- Online ArcGIS Map
- PDF Maps
- Statewide Map
- Statewide Top Segments by Category
- District 1 Maps | Top 25 | Top 10 Per Category
- District 2 Maps | Top 25 | Top 10 Per Category
- District 3 Maps | Top 25 | Top 10 Per Category
- District 4 Maps | Top 25 | Top 10 Per Category
- District 5 Maps | Top 25 | Top 10 Per Category
- District 6 Maps | Top 25 | Top 10 Per Category
- District 7 Maps | Top 25 | Top 10 Per Category
- District 8 Maps | Top 25 | Top 10 Per Category
- District 9 Maps | Top 25 | Top 10 Per Category
- District 10 Maps | Top 25 | Top 10 Per Category
- District 11 Maps | Top 25 | Top 10 Per Category
- District 12 Maps | Top 25 | Top 10 Per Category
2021 TOAST Files are not available
2020 TOAST Archives
- 2020 Toast File (.xlsx)
- 2020 TOAST Catgories and Charts
- 2020 TOAST Updates
- Statewide Map
- Statewide Top Segments by Category
- District 1 Maps | Top 25
- District 2 Maps | Top 25
- District 3 Maps | Top 25
- District 4 Maps | Top 25
- District 5 Maps | Top 25
- District 6 Maps | Top 25
- District 7 Maps | Top 25
- District 8 Maps | Top 25
- District 9 Maps | Top 25
- District 10 Maps | Top 25
- District 11 Maps | Top 25
- District 12 Maps | Top 25
2019 TOAST Archives
- 2019 Toast File (.xlsx)
- 2019 TOAST Catgories and Charts
- 2020 TOAST Updates
- Statewide Map
- Statewide Top Segments by Category
- District 1 Maps | D-1 Report
- District 2 Maps | D-2 Report
- District 3 Maps | D-3 Report
- District 4 Maps | D-4 Report
- District 5 Maps | D-5 Report
- District 6 Maps | D-6 Report
- District 7 Maps | D-7 Report
- District 8 Maps | D-8 Report
- District 9 Maps | D-9 Report
- District 10 Maps | D-10 Report
- District 11 Maps | D-11 Report
- District 12 Maps | D-12 Report
2018 TOAST Archives
- 2018 Toast File (.xlsm)
- 2018 TOAST Catgories and Charts
- Statewide Top Segments by Category
- District 1 Maps | D-1 Report
- District 2 Maps | D-2 Report
- District 3 Maps | D-3 Report
- District 4 Maps | D-4 Report
- District 5 Maps | D-5 Report
- District 6 Maps | D-6 Report
- District 7 Maps | D-7 Report
- District 8 Maps | D-8 Report
- District 9 Maps | D-9 Report
- District 10 Maps | D-10 Report
- District 11 Maps | D-11 Report
- District 12 Maps | D-12 Report