Metadata: Guardrail

Guardrail

Category Transportation - Assets
Feature Dataset Name STAND-ALONE
Item Name GUARDRAIL_PDX
Database Type SDE
Originator City of Portland
Bureau Bureau of Transportation
Publication Date
Abstract Lines representing protective guardrails in Portland. The types of guardrails include concrete barriers, post cables, flex beams, and rock barriers. The attribute information includes asset ownership, maintenance information, and details about the type of barriers and hazard that they are guarding against.
Purpose For mapping and analysis of guardrails in Portland.
Supplemental Information
Last Dataset Update 08/15/2022 16:33
Last Source Update 08/15/2022 05:01
Maintenance/Update Frequency As needed
Extent Clackamas County, Multnomah County, and Washington County, Oregon
Data Type Vector
Shape Type Poly Line
Feature Count 1168
Horizontal Position Accuracy
Horizontal Position Accuracy Link Taxlots
Progress Complete
North Bounding Coordinate 727241.169051304
South Bounding Coordinate 653339.569523543
East Bounding Coordinate 7694664.43499754
West Bounding Coordinate 7596257.88904972
Theme Keyword(s) transportation,guardrail, barriers
Theme Keyword Thesaurus None
Place Keyword(s) Portland, Multnomah County, Washington County, Clackamas County, Oregon
Place Keyword Thesaurus None
Access Constraints Available for Public Use
Use Constraints These data are distributed under the terms of the City of Portland Data Distribution Policy. Care was taken in the creation of this data but it is provided "as is".

The City of Portland cannot accept any responsibility for errors, omissions, or positional accuracy.
Source Dataset Type Enterprise Geodatabase
Output Geodatabase ASSETS_PDOT
Distribution Grid: State plane coordinate system 1983(91).
Units: International feet
Datum: North American Datum of 1983/1991 (HPGN)
Liability: The information in this file was derived from digital databases on the City of Portland GIS. Care was taken in the creation of this file. The City cannot accept any responsibility for errors, omissions, or positional accuracy. There are no warranties, expressed or implied.
Format: Shapefile or File Geodatabase Feature Class - Data will be provided via City of Portland FTP Site.
Online Resource: http://portlandmaps.com/opendata
Online Instructions: City of Portland Public/Open Data is distributed via the PortlandMaps Open Data Site - http://portlandmaps.com/opendata. Data not available on the PortlandMaps Open Data site can be requested by contacting the City of Portland CGIS Group - maps@portlandoregon.gov
Transfer Size: varies
SPCS Zone Identifier: 5076
Contact(s)
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PBOT GIS Support
503-823-5185
PBOTGISSupport@portlandoregon.gov
1120 SW Fifth Ave., Suite 1331
Portland, OR 97204

City of Portland - PBOT
503-823-5185
PBOTFrontDesk@portlandoregon.gov
File(s)
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Images
52783.png 259.71Kb X
Lineage
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Web Services

Service Description Feature Access Layer
PBOT_DefaultLayers This service includes an array of asset, permitting, planning and project data to serve as a general reference for PBOT staff working remotely. Dynamic Guardrail
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Attribute Tables & Domains

X
guardrail_pdx
Table Description
Table Jurisdiction
Column Sort Column Name Column Alias Column Type Column Size Domain Value(s) Column Description
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1 AssetID AssetID String 15
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X
Unique asset identifier.
1 GuardRailType GuardRailType Integer 4
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4710 Concrete barrier X
4711 Guardrail X
4712 Rock barrier X
4713 Post cable X
4714 Other X
X
The subtype field describes broad categories of roadside barriers including guardrail, concrete, rock and post and cable designs.
1 LocationID LocationID String 15
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X
Location in PBOT's location hierarchysystem.
1 ImagePath ImagePath String 255
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X
Link to related diagram or photo, not typically used for guardrail.
1 TotalLength TotalLength Numeric 8
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X
Field measurement of the length of the barrier, in feet.
1 SectionLength SectionLength Numeric 8
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X
Length of a typical section of the barrier, in feet.
1 Owner Owner String 15
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X
Owner of the asset. PdxTrans means the asset is owned by PBOT.
1 MaintResp MaintResp String 15
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X
Maintainer of the asset. PdxTrans means that PBOT is responsible for maintaining the asset.
1 DistAlongSt DistAlongSt Integer 4
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X
Distance from the curb face or edge of pavement/roadway of the nearest cross street to the beginning of the roadside barrier, in feet. Not typically populated.
1 MeasureDir MeasureDir String 1
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X
Direction of the DistAlongSt measure. Not typically populated.
1 MeasureFrom MeasureFrom String 50
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X
Description of the starting point for the DistAlongSt measure. Not typically populated.
1 DistFromEdge DistFromEdge Integer 4
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X
Narrowest distance from edge of traveled way to the face of the barrier. Edge of traveled way is defined as edge of vehicle travel lane (i.e. curb face, edge line, bike lane line, or edge of pavement if no line). If for any portion of the run, the face of the rail is over the curb, 0 is recorded as the distance value.
1 MinRailHeight MinRailHeight Integer 2
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X
If the rail is behind the curb, the lowest height (in inches) from the surface on which the rail is mounted is measured. If the face of the rail is over the curb, the height from the surface of the roadway is measured. If the rail height is uniform, the same value for both minimum and maximum height is entered.
1 MaxRailHeight MaxRailHeight Integer 2
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X
The highest height (in inches) from the surface on which the rail is mounted to the top of the rail is measured. If the rail height is uniform, the same value is entered for both minimum and maximum height.
1 SectionsStraight SectionsStraight Integer 2
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X
The number of straight sections. Concrete barrier sections should berecorded as “straight.”
1 SectionsConcave SectionsConcave Integer 2
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X
The number of concave sections (bends away from traffic).
1 SectionsConvex SectionsConvex Integer 2
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X
The number of convex sections (bends towards traffic).
1 PostsTimber6x8 PostsTimber6x8 Integer 2
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X
Count of 6x8 timber posts.
1 PostsTimber8x8 PostsTimber8x8 Integer 2
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X
Count of 8x8 timber posts.
1 PostsIBeam PostsIBeam Integer 2
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X
Count of steel I-beam posts.
1 PostsWideFlange PostsWideFlange Integer 2
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X
Count of wide flange posts.
1 PostsConcrete8D PostsConcrete8D Integer 2
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X
Count of 8" diameter concrete posts.
1 PostsConcrete8x8 PostsConcrete8x8 Integer 2
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X
Count of 8"x8" concrete posts.
1 PostsOther PostsOther Integer 2
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X
Count of other post.
1 HazardDist HazardDist Integer 2
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X
Approximate distance to the nearest hazard, in feet.
1 HazardDesc HazardDesc String 100
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X
Text description of the hazard.
1 LastInspDate LastInspDate Date 36
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X
Date of the last inspection.
1 FlaredAway FlaredAway String 1
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N No
X
U Unknown X
Y Yes X
X
Indicates whether the near end of the barrier, given the direction of travel, flares away from the roadway.
1 RailType RailType String 8
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BANDRAIL Band rail X
BOXBEAM Box beam X
CABLE Cable
X
CHAINLINK Chain link X
JERSEY Jersey barrier X
NONE None X
PARAPET Parapet
X
ROCKWALL Rock wall X
SCOLLINS Steel collins X
THRIEBM Thrie beam X
TEXAS Texas barrier X
UNKNOWN Unknown X
WBEAM W beam X
WBEAMT31 W beam T31 X
WBFLAIR W beam with flared edge
X
WOOD Wood X
X
Roadside barrier design.
1 Reflectors Reflectors String 1
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N No X
U Unknown X
Y Yes X
X
Indicates if reflectors are present.
1 NearEndTreatment NearEndTreatment String 8
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ABSORB Energy Absorbing - Other X
ATTACHED Attached to Structure - Other X
BCT BCT X
BURIED Buried in Ground X
ENDSHOE End Shoe X
ENDWING Endwing X
ET2000 ET-2000 X
ET2000+ ET-2000 Plus X
FLEAT350 FLEAT 350 X
NONE None X
OREGON Oregon alternate X
SKT350 SKT 350 X
SRT350 SRT 350 X
UNKNOWN Unknown X
3/4WRAP 3/4 Wrap X
X
Identifies the end-treatment on the leading end of the barrier in the direction of adjacent traffic.
1 FarEndTreatment FarEndTreatment String 8
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ABSORB Energy Absorbing - Other X
ATTACHED Attached to Structure - Other X
BCT BCT X
BURIED Buried in Ground X
ENDSHOE End Shoe X
ENDWING Endwing X
ET2000 ET-2000 X
ET2000+ ET-2000 Plus X
FLEAT350 FLEAT 350 X
NONE None X
OREGON Oregon Alternate X
SKT350 SKT 350 X
SRT350 SRT 350 X
UNKNOWN Unknown X
3/4WRAP 3/4 Wrap X
X
Identifies the end-treatment on the trailing end of the barrier in the direction of adjacent traffic.
1 Blockouts Blockouts String 1
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N No X
U Unknown X
Y Yes X
X
Indicates if blockouts are present.
1 PostsSpacing PostsSpacing String 15
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UNKNOWN Unknown X
12FTCENT 12ft center X
3FTCENT 3ft center X
6FTCENT 6ft center X
X
Standard post spacing is 3’, 6’ or 12’ measured center to center. Guardrail has slots for bolts at these intervals. If holes have been drilled into rail at different intervals that could indicate non-standard spacing.
1 HazardType HazardType String 8
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DITCH Ditch X
NONE No other hazard X
ROCK Rock X
STRUCT Structure X
TREES Trees X
UTILITY Utility X
WATER Water X
X
Hazard present behind the barrier, if there is a hazard other than slope.
1 Slope Slope String 8
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FLAT Flat
X
MODDOWN Moderate - down X
MODUP Moderate - up X
STPDOWN Steep - down X
STPUP Steep - up X
X
Slope of the terrain behind the barrier.