20250303
09341000
1.0
FALSE
RouteDirectnessIndex_Transects
680620.089194
2513360.718653
91652.770882
1346295.174322
1
002
Projected
GCS_North_American_1983_HARN
Linear Unit: Foot_US (0.304801)
NAD_1983_HARN_StatePlane_Washington_South_FIPS_4602_Feet
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20250305
09594100
20250305
09594100
150000000
5000
FGDC
FGDC CSDGM Metadata
dataset
external
1ee3f4690fb3e55263b2b56dfe5aa332ef4cf441
Mary DuBose
HQ Design - Safety, Assets, and Innovation Unit (SAIU)
Asset Data Manager
mary.dubose@wsdot.wa.gov
True
Mary DuBose
20250305
Jordyn Mitchell
Washington State Department of Transportation, Office of Information Technology
GIS Database Administrator
US
jordyn.mitchell@wsdot.wa.gov
Jordyn Mitchell
Download individual data sets from https://gisdata-wsdot.opendata.arcgis.com
Feature Class
<DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 11 0;"><SPAN><SPAN>For Planning use only. The Washington State Department of Transportation (WSDOT) shall not be liable for any activity involving the use of the data, including, but not limited to, lost profits or savings or any other economic or consequential damages. Nor does the WSDOT warrant the fitness of the data for use for a particular purpose, or the installation of the data, its use, or the results obtained.</SPAN></SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN>To the fullest extent permitted by law, the Data User shall hold harmless, defend at its own expense, and indemnify WSDOT, its officers, employees, agents, and volunteers, against any and all liability, claims, losses, damages, or expenses, including reasonable attorney’s fees, arising from all acts or omissions of the Data User or its officers, agents, or employees in its use of the WSDOT data.</SPAN></P></DIV></DIV></DIV>
Washington State
vector digital data
Route Directness Index - Transects
2025-01-30T00:00:00
Brian Wood
WSDOT Active Transportation
brian.wood@wsdot.wa.gov
WSDOT
WA
DOT
Washington
State
Department
Transportation
Pedestrian
Washington State Department of Transportation
Esri ArcGIS 12.8.3.29751
WA
Washington
ISO 19115 Topic Category
Transportation
Washington State OCIO Data Classification
Public information is information that can be or currently is released to the public. It does not need protection from unauthorized disclosure but does need integrity and availability protection controls.
1
-124.493249
-116.867567
49.023872
45.522159
This data provides a high-level measure of the Route Directness Index (RDI) associated with potential roadway crossing activities in population centers. The data has been developed for generalized locations along Washington State highways. This RDI data provides planners and designers with a general, but objective measure of out of direction travel requirements for a reference trip. The data is best suited for analysis of pedestrian and bicyclist trip making at regional or statewide scales. This layer uses available network input data and does not capture all potential crossing locations or evaluate the suitability of a given crossing for active travel.
<DIV STYLE="text-align:Left;font-size:12pt"><P STYLE="font-size:16ptmargin:0 0 11 0;"><SPAN STYLE="font-size:12pt">This feature class represents the transects that were used for the Route Directness Index calculation. These lines were generated along the increasing state routes as represented by the 12/31/2023 WSDOT LRS. Transects were only generated within Population Centers (using the Population Centers dataset obtained from the GIS Workbench in January 2025). Every 0.01 mile (52.8 feet) along the route a transect was created perpendicular to the route extending 500 feet on each side of the route. The begin and end points of each transect were then used to generate the shortest walking route between the two points.</SPAN></P><P STYLE="font-size:16ptmargin:0 0 11 0;"><SPAN STYLE="font-size:12pt">The Route Directness Index (RDI) is a ratio that compares the straight-line (crow-flies) distance from one point to another across a barrier to the actual distance imposed by the network of paths available to a traveler. RDI data is particularly relevant to pedestrian and/or bicyclist trips due to the extra time, physical energy, and exposure to weather that out of direction travel creates. A complete discussion of route directness, including potential applications to decision making, can be found Washington State Multimodal Permeability Pilot, August 2021 [</SPAN><A href="https://wsdot.wa.gov/sites/default/files/2021-11/MultimodalPermeabilityPilotReport-Aug2021.pdf" STYLE="text-decoration:underline;"><SPAN STYLE="font-size:12pttext-decoration:underline;">https://wsdot.wa.gov/sites/default/files/2021-11/MultimodalPermeabilityPilotReport-Aug2021.pdf</SPAN></A><SPAN STYLE="font-size:12pt">].</SPAN></P><P STYLE="font-size:16ptmargin:0 0 11 0;"><SPAN STYLE="font-size:12pt">RDI can be analyzed at different scales. A high-level analysis of RDI can address questions that compare population centers across the state or consider whether the RDI values are generally similar within a given population center or tend to vary in different portions of a population center. High level data could be combined with other statewide data such as crash data, transit stops, level of traffic stress data, destination data, etc. to analyze potential correlations. High level RDI data is less useful for analyzing a particular crossing location or recommending solutions to address high RDI values. A more detailed analysis is likely required when questions involve corridor studies or project evaluations. Detailed location information can refer to key destinations and crossing locations that are not captured using higher level network maps.</SPAN></P><P STYLE="font-size:16ptmargin:0 0 11 0;"><SPAN STYLE="font-size:12pt">The lowest RDI is 1 because a trip between those points can be made directly along an existing roadway. The actual methodology analyzed hypothetical trips where the start and end points were about a quarter mile apart relative to a straight line. In such a situation, an RDI of 2 would mean the trip is twice the distance it might otherwise be, or about one-half mile. Although one-half mile is not particularly far, the RDI is independent of the actual distance. We might start further down the road and if the RDI remained a 2 our trip distance would be twice as long as it could have been. The RDI thus measures the real or perceived burden or travel cost incurred by a person walking or bicycling. </SPAN></P></DIV>
Brian Wood
WSDOT Active Transportation
brian.wood@wsdot.wa.gov
Brian Wood
Metadata most recently updated by Mary DuBose on 2/11/2025.
<DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 11 0;"><SPAN><SPAN>For Planning use only. The Washington State Department of Transportation (WSDOT) shall not be liable for any activity involving the use of the data, including, but not limited to, lost profits or savings or any other economic or consequential damages. Nor does the WSDOT warrant the fitness of the data for use for a particular purpose, or the installation of the data, its use, or the results obtained.</SPAN></SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN>To the fullest extent permitted by law, the Data User shall hold harmless, defend at its own expense, and indemnify WSDOT, its officers, employees, agents, and volunteers, against any and all liability, claims, losses, damages, or expenses, including reasonable attorney’s fees, arising from all acts or omissions of the Data User or its officers, agents, or employees in its use of the WSDOT data.</SPAN></P></DIV></DIV></DIV>
The Route Directness Index was updated in January 2025 by Mary DuBose (HQ Design - Safety, Assets, and Innovation Unit). The previous version was created in June 2022 by Dan Keller. This dataset is developed in partnership with the Active Transportation Division.
Population Centers - Active Transportation
Accessed from WSDOT GIS Workbench
LRS 24k Increasing - 2023
Accessed from WSDOT GIS Workbench
188760
EPSG
6.3(9.0.0)
RouteDirectnessIndex_Transects
Feature Class
188760
OBJECTID
OBJECTID
OID
4
10
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
SHAPE
Shape
Geometry
4
0
0
Feature geometry.
Esri
Coordinates defining the features.
RDI_Identifier
RDI_Identifier
Integer
4
10
0
Unique identifier field that is shared between the RDI points, lines, and transects.
Shape.STLength()
Shape.STLength()
Double
0
0
0
Simple
FALSE
188760
TRUE
FALSE