Speed_Table_Detail.pdf
PDF 146 KB Posted
- Attached to
- Traffic Calming
- Solicitation number
- 2026-IFB-186
- Issued by
- Allegheny County, Philadelphia City, Pennsylvania
About this file
This is a technical specification document prepared by the City of Pittsburgh Department of Mobility and Infrastructure, Traffic Engineering Division, dated October 26, 2020, in support of a Traffic Calming contract opportunity solicited by the City of Pittsburgh Office of Management and Budget on behalf of the Department of Mobility and Infrastructure. The document provides detailed engineering plans and specifications for speed table installation, including plan views, cross-sectional details, and dimensional requirements. Speed tables are to be constructed with a 3-inch flat section, 22-foot length, and 7-inch height with sealed asphalt approaches. The specifications include requirements for curb details in both standard and wedge configurations, with 1.5-inch minimum milling of existing asphalt. The document establishes pavement marking standards requiring 12-inch white markings at the leading edge of each speed table, spaced 100 feet apart on typical approaches, along with advanced warning signage specifications.
The specification document addresses traffic safety signage and pavement marking requirements integral to speed table implementation. Warning signs include W17-1 (30"x30") and W16-7P (24"x12") configurations positioned at appropriate intervals, with sign B recommended on either approach when multiple speed tables are installed in series. The design accommodates typical two-approach installations with symmetrical specifications. The document notes that advanced warning pavement markings are optional, though leading edge speed table pavement markings are mandatory for each installation. No pricing, quantities, or contract terms are specified within this technical document, which serves as the design standard for bidders responding to the Traffic Calming solicitation.
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Text version
Mill 1.5" Min
B
C of Speed
Hump
L
B
C of Roadway
A
Curbline
2' MIN
6' REC.
1' MIN.
2'
SPEED TABLE PLAN
Seal with AC20
0.0" .92" 1.67" 2.25"2.67" 2.92" 3.0"
1'
(TYP)
C of Speed Table
L
6'
Seal with AC20
6'
22'
10'
3" FLAT
7"
24"
Seal with AC20
18"
Speed Table
12" 24"
Seal with
AC20
12"
Speed Table
Mill 1.5" Min
Existing Asphalt
STANDARD CURB DETAIL
SECTION
Mill 1.5" Min
Existing Asphalt
WEDGE CURB DETAIL
B
SECTION
A
A
L
CITY OF PITTSBURGH
DEPARTMENT OF MOBILITY
AND INFRASTRUCTURE
TRAFFIC ENGINEERING DIVISION
SCALE: NTS
DATE: 10/26/2020
SHEET NO.
APPROVED BY DATE
AutoCAD SHX Text
APPROVED BY
AutoCAD SHX Text
DRAWN BY
AutoCAD SHX Text
SPEED TABLE DETAIL
B
BA
A
(Typ. Both Approaches)
12" White Pavement Marking (Typ.)
100'
(Typ. Both Approaches)
100'
8'
10'12' 14'
16' 18'20'
Advanced Warning Signage for Speed Table
Scale: N.T.S.
Center of Speed Table
12" White Pavement
Marking (Typ.)
Center of Travel Lane
Center Line of Road
Center of Travel Lane
22' (Typ)
Center of Speed Table
Leading Edge Speed Table Detail
Scale: N.T.S.
SPEED
HUMP
SPEED
HUMP
A B
W17-1 (30"x30") W17-1 (30"x30")
W16-7P (24"x12")
W13-1 (18"x18")
M.P.H.
1 - IF MORE THAN ONE SPEED TABLE IS
INSTALLED, INSTALL SIGN B ON EITHER
APPROACH TO THE SERIES OF TABLES.
2 - LEADING EDGE SPEED TABLE PAVEMENT
MARKINGS ARE REQUIRED IN EACH SPEED
TABLE. ADVANCED WARNING PAVEMENT
MARKINGS ARE OPTIONAL.
CITY OF PITTSBURGH
DEPARTMENT OF MOBILITY
AND INFRASTRUCTURE
TRAFFIC ENGINEERING DIVISION
SCALE: NTS
DATE: 10/26/2020
SHEET NO.
APPROVED BY DATE
AutoCAD SHX Text
APPROVED BY
AutoCAD SHX Text
DRAWN BY
AutoCAD SHX Text
SPEED TABLE DETAIL SIGNAGE AND PAVEMENT MARKINGS
| Sheets and Views |
| SpeedTableSpecs-Speed Table 1 |
| SpeedTableSpecs-Speed Table 2 |
File details come from the government source that posted it. Updated .