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Millennium Edition Part 4: Traffic Signals

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Day and Night Sign Inspections. Day and Night Inspection Schedule ... Design guidance in accordance to part 6 and letter height of 450 mm (18' ... – PowerPoint PPT presentation

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Title: Millennium Edition Part 4: Traffic Signals


1
MUTCD Part 2 Signs
2
Chapter 2A General
3
A New Highway Classification
  • Special purpose road
  • in addition to the existing
  • freeway
  • expressway
  • conventional road

4
Illumination and Retroreflectivity
  • All signs shall be retroreflective or illuminated
  • improves safety
  • improves visibility

5
Letter Heights on Signs
  • Based on 25mm (1in) letter height per 12m (40ft)
    of legibility distance

6
Sign Lettering
  • Non-restricted use of series B alphabet

7
Mounting Height
  • No change to mounting height
  • 5 feet in rural districts
  • 7 feet in urban districts

8
Breakaway/Shielded Sign Supports
  • Sign supports within the clear zone SHALL be
    breakaway, yielding, or shielded
  • Overhead sign supports shall have a barrier or
    crash cushion

9
Day and Night Sign Inspections
  • Day and Night Inspection Schedule
  • reiterated as guidance in the MUTCD

10
Questions?
11
Chapter 2B Regulatory Signs
12
4-WAY Supplemental Plaque
  • Requires the use of the 4-WAY supplemental plaque
    (R1-3) at intersections controlled by STOP signs

13
Yield Sign Placement
  • Yield signs shall be located as close as
    practical to the intersection it regulates

14
Truck Speed Limit Sign
  • Clarify this sign is a supplemental plaque
    required for use below speed limit sign or
    included within R2-1 sign
  • added as separate section

15
Intersection Lane Control Signs
  • When used, intersection lane control signs should
    be mounted overhead

16
Mandatory Movement Signs
  • New section that specifically addresses
    application and placement for mandatory movement
    lane control signs (R3-5, R3-5a and R3-7)

17
Mandatory Movement Signs (contd)
  • New design standard for the LEFT OR RIGHT TURN
    ONLY (R3-5) symbol sign

18
Reversible Lane Control Signs
  • New section on Reversible Lane Control Signs

19
Reversible Lane Control Signs
  • When ground-mounted reversible lane control signs
    are used, they shall be used as a supplement to
    overhead signs or signals

20
Truck Lane Signs
  • Where an extra lane is provided for slow moving
    traffic, the R4-3 or R4-5 signs should be
    installed at the beginning of the lane

21
Truck Lane Signs (contd)
  • A TRUCK LANE sign (R4-6) should be installed in
    advance of the lane

22
Emergency Restriction Signs
  • Emergency restriction signs shall be rectangular
    and shall have a red or black legend border on
    white background

23
High Occupancy Vehicle Lanes
  • New section that includes provisions for the
    design and operation of HOV lanes

24
High Occupancy VehicleLanes (contd)
  • Revised preferential lane signs to address HOV
    lanes, in addition to other preferential uses

25
Questions?
26
Chapter 2C Warning Signs
27
Increase Minimum Size of Signs
  • 1988 MUTCD
  • 2000 MUTCD

28
Combined Intersection Warning Signs
  • New sign and new section which allows the turn
    curve signs to be combined with the cross road
    side road signs

29
Reducing Run off the Road Crashes Along Curves
  • We have three new warning signs
  • combination intersection/curve (W-10)
  • combination horizontal alignment sign and
    advisory speed
  • advisory curve speed sign (W13-5)

30
Circular Intersection Sign
  • Include a new circular intersection sign

31
Speed Hump Sign
  • A new section and word message sign added
  • speed hump

32
Pavement Ends Sign Deleted
  • Discontinued the use of the Pavement Ends
    symbol sign
  • replace with word message signs

33
Lane Ends Sign
Word message signs help improve understanding
Symbol sign is misunderstood
34
New Curve Speed Sign
  • A new curve speed sign may be used to provide the
    advisory speed on roads and highways throughout
    the horizontal alignment change

35
Motorized Traffic Signs
  • A new section 2C.36 entitled, Motorized Traffic
    Signs

36
Crossing Signs
1988 MUTCD
  • 2000 MUTCD
  • Deletion of crosswalk lines on the Crossing Sign

Advance Crossing
Crosswalk Sign (with lines)
37
Questions?
38
Chapter 2D Guide Signs Conventional Roads
39
Placement of Route Signs
  • Route signs located on top left of sign panel in
    this order

40
Cardinal Direction Signs
  • Increased first letter
  • Compliance date December 31, 1994
  • HAVE YOU ??

41
General Service Signs
  • Option to sign for
  • emergency dial XXX
  • roadway conditions dial 511

42
Questions?
43
Chapter 2E Guide Signs for Expressways and
Freeways
44
Combined Parts
  • 2E Guide Signs freeways and expressways
  • combines 1988 Editions Part 2E - Guide Signs for
    Expressways and Part 2F - Guide Signs for
    Freeways

45
Retroflective Signs
  • Sign backgrounds that are not independently
    illuminated shall be retroflective

46
Legends and Borders on Overhead Signs
  • Shall be retroreflective unless internally
    illuminated

47
Selection of Control Cities
  • States and local agencies are responsible for
    selecting control cities

48
Symbol Signs
  • Symbol designs shall match the MUTCD

49
Diagrammatic Sign Design
  • EXIT ONLY panel shall not be used at interchange
    splits

50
Changeable Message Signs
  • Design guidance in accordance to part 6 and
    letter height of 450 mm (18)

51
Vertical Dimension of Exit Number Sign Panel
  • 30 inch vertical dimension

52
Questions?
53
Chapter 2F Specific Service Signs
54
Renumbered Chapter
  • Chapter 2F specific service signs formerly
    chapter 2G

55
(No Transcript)
56
Number of Service Categories Displayed on the
Same Sign
  • Maximum of three service categories shall be
    displayed on the same sign

57
Maximum Number of Logo Panels
  • Six for any category
  • Four and two for combination category sign

58
Maximum Logo Panel Size
  • Table II-4 deleted
  • Freeway and expressway size is 60x36
  • Conventional roads and ramps is 24x18

59
Minimum Letter Sizes
  • Freeway and expressway min. 250mm (10)
  • Conventional roads and ramps min.150mm (6)

60
Questions?
61
Chapter 2G Tourist Oriented Directional Signs
62
Purpose
  • Similar to specific service signs
  • Intended for rural use

63
Definitions of Sign Panel
  • Consistent use of the terms Sign and Panel

64
Application
  • Guidance to use tourist-oriented directional sign
    in place of all specific service sign

65
Design of Tourist Oriented Directional Signs
  • Each panel shall display a single facility

66
Arrangement of TODS
67
Advance Signs
68
Questions?
69
Chapter 2H Recreational and Cultural Interest
Area Signs
70
Recreation and Cultural Interest Signs
71
Forest Service Symbol Signs
72
Questions?
73
Chapter 2I Emergency Management Signing
74
(No Transcript)
75
Design of Evacuation Route Sign
76
Questions?
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