This article focuses on the Concurrent Route filters available for Oklahoma Department of Transportation (ODOT) users in AASHTOWare Safety applications. Find the comprehensive Oklahoma Crash Query filter guide here.
Filter Overview
The ODOT Route (Concurrent Routes) filter will display crashes (or sections of roadway, depending on the application) that occurred along the entire length of a named route, including any locations where there are concurrent routes (more than one named route along the same stretch of highway).
The Concurrent Routes Included filters should be used with caution, as it’s possible to inadvertently double-count crashes.
To avoid counting crashes multiple times for multiple concurrent routes, do not use this filter in Chart Builder. Additionally, users should not sum crashes off of multiple, separate reports that use the filter. The best practice recommendation is to filter all routes of interest in a single query.
These filters are displayed as follows in the applications:
Crash Query
In Crash Query, the concurrent route filter is available in the filter bar as ODOT Route (Concurrent Routes Included). This filter will display the crashes that occurred on the selected concurrent route(s).
(The ODOT Route (Concurrent Routes Included) filter in Crash Query)
Sliding Window Analysis
In Sliding Window Analysis, the concurrent route filter is available in the filter bar as ODOT Route (Concurrent Routes Included). This filter will display sliding windows where at least one crash occurred on the indicated concurrent ODOT route.
(The ODOT Route (Concurrent Routes Included) filter in Sliding Window Analysis.
Network Screening - Segments
In Network Screening - Segments, there are multiple concurrent route filters available in the filter bar:
ODOT Route (Concurrent Routes Included) (Crashes): This filter will display segments where at least one crash occurred on the selected ODOT concurrent route(s).
ODOT Route (Concurrent Routes Included) (Segments): This filter will display segments along the selected concurrent ODOT route(s).
ODOT Highway by System (Concurrent Routes Included) (Segments): This filter will display segments where at least one dominant and/or follow route is listed as the selected highway system.
(The Concurrent Routes Included filters available in Network Screening - Segments)
Network Screening - Intersections
In Network Screening - Intersections, there are multiple concurrent filters available in the filter bar:
ODOT Route (Concurrent Routes Included) (Crashes): This filter will display the intersections where at least one crash occurred on the selected concurrent route(s).
ODOT Route (Concurrent Routes Included) (Intersections): This filter will display intersections on the selected concurrent ODOT route(s).
ODOT Highway by System (Concurrent Routes Included) (Intersections): This filter will display intersections where at least one of the dominant and/or follow routes is listed as the selected highway system.
(The Concurrent Routes Included filters available in Network Screening - Intersections)
The Difference Between ODOT Route and ODOT Route (Concurrent Routes Included) Filters
The ODOT Route filter comes from a single field in the ODOT Linear Referencing System (LRS), “ODOT Route.” Each crash is assigned one route, and a single match is pulled from the ODOT LRS.
The ODOT Route (Concurrent Routes Included) filter can include multiple matches from the LRS in an array field, pulling from "ODOT Route" and up to four concurrent "Follow Route” fields.
(The ODOT Route filter applied in Crash Query)
(The ODOT Route (Concurrent Routes Included) filter applied in Crash Query)
ODOT Highway by System (Concurrent Routes Included)
The ODOT Highway By System (Concurrent Routes Included) filter is available in the Network Screening - Segments and Network Screening - Intersections applications. In Network Screening - Segments, this filter includes (Segments) in the name, and in Network Screening - Intersections, this filter includes (Intersections) in the name.
In Network Screening - Segments, this filter will display any segments with any dominant and/or concurrent routes labeled as the selected highway system. For example, if users select the value “State Route,” any segments with a dominant or concurrent route labeled “State Route” as its Highway System will populate.
In Network Screening - Intersections, this filter will display any intersections with any dominant and/or concurrent routes labeled as the selected highway system. For example, if users select the value “State Route,” any intersection with a dominant or concurrent route labeled “State Route” as its Highway System will populate. So long as at least one leg of the intersection meets the filter criteria, all legs of that intersection will be included in query results, even if the other intersection legs do not meet the filter criteria.
(In Network Screening - Intersections, the value State Route is selected in the ODOT Highway By System (Concurrent Routes Included) (Intersections) filter. This will display intersections with dominant and/or concurrent routes labeled State Route)
(The ODOT Highway By System (Concurrent Routes Included) filter in Network Screening - Intersections)
The following examples provide an overview of how different values in the filter will populate different results.
Network Screening – Intersections Example 1: State Route Query
This query is looking for intersections along State Routes.
ODOT Highway by System (Concurrent Routes Included) (Intersections) = State Route
Intersection A will be included in results
Intersection B will be included in results
(Example State Route Query: Intersection A will be included in results)
(Example 1 State Route Query: Intersection B will be included in results)
Network Screening – Intersections Example 2: State Route Query with Exclusion of Other Highway Systems
This query is looking for intersections along State Routes, while excluding other highway systems.
ODOT Highway by System (Concurrent Routes Included) (Intersections) = State Route
ODOT Highway by System (Concurrent Routes Included) (Intersections) ≠ U.S. Route, Interstate, Turnpike
Intersection A will be included in the results. The intersection legs that have a State Route and do not have a U.S. Route, Interstate, or Turnpike qualify the entire intersection to be included in the query results.
Intersection B will not be included in results. Because there is no approach leg that is a State Highway and is also not a U.S. Route, Interstate, or Turnpike, the intersection is not included under the filter.
(Example 2 State Route Query with Exclusion of Other Highway Systems: Intersection A will be included in results (even though some approach legs have a U.S. Route designation in this example)
(Example 2 State Route Query with Exclusion of Other Highway Systems: Intersection B will not be included in results. Because there is no approach leg that is a State Highway and is also not U.S. Route, Interstate, or Turnpike, the intersection is not included under the filter)