Traffic Signal Plans Chapter 4 Jerry Kotzenmacher MN/DOT
Traffic Signal Plans
Chapter 4
Jerry Kotzenmacher
MN/DOT
2
Who Needs a Plan?
3
Who Needs a Plan?
4
Who Needs a Plan?
5
What is plan used for?
Contractors bid
Building the signal
Operating/maintaining the signal
Locates
Tort claims/Law suits
6
Typical Signal Plan
Required Sheets
Sheet Signal Design
Title Sheet
Estimated Quantities (if not shown on the title sheet)
Details Equipment Pad Layout Preformed NMC Loop Detector Detail Advance Warning Flasher Detail Signing and Pavement Markings Details Pole Mount Detail Other(s)
7
Typical Signal Plan
Required Sheets
Sheet Signal Design
Intersection Layout Sheet
Field Wiring Diagram
Interconnect Layouts
For Information Only Sheet(s)
Utilities
8
Title Sheet
Title Sheet
– The title sheet is
required for all traffic
signal plans. It
includes information
such as the title
block, project
location, governing
specifications, etc.
9
Title Sheet
– Plan Preparation Certification Note
– Signature Block
10
Title Sheet– Index Map
11
Title Sheet
– Abbreviations
12
Title Sheet
Standard Plates
– Filled arrows are the used plates.
13
Page 2 of the planEquipment Pad Details
14
Page 3 of the plan
Advance Warning Flasher Details
15
Page 4 of the plan
NMC Loop Detail
16
Page 8 of the plan Interconnect plan sheet
– Interconnect sheets use 100 scale
17
Page 9 of the plan
Utilities Plan Sheet
– This is a plan sheet view of the public utilities.
18
Page 10 of the plan
Saw Cut Loop Detail
19
Page 11 of the plan
Pole Base wire connector Detail
20
Page 12 of the plan
Pole Mount Detail – Angle & Straight
21
Last page of the planPedestrian Station Detail
22
Example only – not in your plan
Lighting Detail
– Shows the details of the lighting units if
included in the project.
Note: Shown graphic not from
sample signal plan
23
Example only – not in your plan
Tabulations
– Earthwork summary tabulations may be included if this signal project is part of a construction project.
Note: Shown graphic not from
sample signal plan
24
25
Signal Layout-PAGE 5
Road Lines
conduit
Ped diagram
and
Phasing
Signal Face
Chart
Scale
Pole numbering starts at the
cabinet going clockwise.
Indications read right
to left.
Conduit Wires
2-12/c #14
1-3/c #14
5-2/c #14
1-3/c #20
1-6/PR #19
1-1/c #6 INS. GR
Pole Notes
Loop Detector
Detector Chart
Construction Notes
26
Controller Operations– Phasing
– Dual-ring and Concurrent group Controllers
DUAL RING STRUCTURE
5 6
3 41 2
7 8
RING 1
RING 2
BARRIER 1
(LEFT SIDE)
BARRIER 2
(RIGHT SIDE)
27
Signal Layout – Page 6
Pavement Markings Detail
Advance Detectors
Match line
Match line
28
Signal Layout
Equipment Pad
Equipment Pad
Controller
CabinetService
Cabinet
29
Signal Layout
Pole Symbols & Names
Signal Pole Base Foundation
Transformer
Base
Pole
30
Signal Layout
Pole Symbols
Mast Arm Pole
Signal Indication
31
Signal Layout
Pole Symbols
Luminare
Emergency Vehicle
Pre-emption
32
Signal LayoutPole #3 Notes
Signal Pole Base
33
Signal LayoutPole Note #3 –
3rd line
Pole Type
PA100
Pole length
(50’) with
A type bolt
pattern
Davit (luminare
arm) mounting
Height (40’)
9’ Davit (luminare
arm) mounting
at 350o
34
Signal Layout
Pole #3 Notes
Signal Pole Base #3
Mast Arm at 0 degree
35
Signal Layout
Indications – Left Turns Protected Vehicle
Signal Face
Vehicle Signal
Face
36
Signal LayoutSignal Face Chart – Left Turns
Permissive
Prot/Perm
Protected
37
Signal LayoutSignal Face Chart – Left Turns
Flashing Yellow Arrow
38
Signal Layout Phasing & Pedestrian
Chart – Numbering –APS Address
39
Signal Layout - Peds
Pedestrian Symbols
Pedestrian Countdown
Signal Face
Pedestrian Push
Button (APS)Pedestrian
Pedestal
40
Signal Layout - Peds
Pedestrian Push Button Station & APS
Pedestrian Push
Button Station
41
Signal Layout
Hand Hole
Handhole 1
Handhole 15
Handhole 16
42
Signal Layout
DetectionDetector
Detector
43
Signal Layout
Detector Chart
44
Signal Layout
Advanced Warning Flasher
Advance Warning
Flasher
Note: Above graphic not from
sample signal plan
45
12
Conductor
Wire
Wiring DiagramField Wiring - Page 7 of 12
Hand Hole
Controller
Cabinet
Loop
Detectors
Wire
#11
Wire
#11
Pole Number
Notes
Service
Cabinet
Ground
Rod
Insulated
ground
46
Wiring DiagramLayout/Wire Diagram Cross Reference
47
Wiring Diagram Field Wiring Controller
Cabinet
Signal
Service
48
Wiring Diagram
Field Wiring
49
Wiring Diagram
Field Wiring
50
Field Wiring
Wiring Diagram
Loop Detector Graphic
New Existing
Handhole Graphic
New Existing
D2-1 D6-1
HH 19 HH 20
Splice
Splice
51
Mn/DOT - Signal Courses
Training Schedule
– Traffic Signal Design…April 27 - 29th,
2010
Roadway Lighting ..May 12 - 13th 2010
– www.dot.state.mn.us/trafficeng.html
52
It worked
when I left!
Questions?