it~·, .... •.1 \

'"_!

APPENDIX I

72

i

I

REMARKS

0 0

0 0

I ocr:-~ ._) ,! u

\~)67

I~JG8 I C)(). C) '--/ '- ~--·

L.EGEND

I Stop Sign i s .....

y ....

ACCIDENT STUDY COLLISION DIAGRAM

1\J 73

FIGURE 17

MICHIGAN DEPARTMENT OF STATE HIGHWAYS TRAFFIC AND SAFETY DIVISION

1~)6() TL~ R\ J JC_)(_ ;:-.) Location GFNF:'.[E RD 0.3 M1.1L) 05/l>ili Siop & Go Signal + F!ashing B.ea.con . ·, y . + '(

r-~--~----,-~---"::::_---,--.;._-:-:--i'-· ---l Accide.nts- Total ---,.:>..L..--------'-Yield Sign .j Period: --'-""'-"-~~c..__-'i-'r...!Lt:(.l-"C_-""-· -"-'·""-· -"'·'--"·~~~- E A ·::.ror t>OL FRfi.

OlxEGDN TWF L.ARtER CO. ·'}·{~) 7 Fat~l • PedeStrian

Injury 0 Tree ~ P.O. ADT Skidding. 9'9 0 Out of Control

I (~.·~~ .-. 7

"'""._ ~,.. j

Jackknife :uw. Injury {._. ( ~.';

Driver:-lntent . '---~· Rate

Overtur"ed ., :.,'f • ...-r---.. Deer rev-· 0 ) Backing '. Fatal ' ....-..- Violator : Rate C.S.__;, _____ Miles ___ _,_...,;.;.--1

0 D"W 10·12;70 rawn . · v. K Date #7 I mv, Plan No.

/100 mvrrl

_Form 1547 (Rev. ~/69) Sheet __ _,_ 01 .-.,.......,--

74

EASTBOUND

GENESEE ROAD

EASTBOUND

GENESEE ROAD

I

EASTBOUND _.,

I GENESEE ROAD

I l I l l I )

FIGURE 17A ·'

I ./

I .l

J

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WESTBOUND

GENESEE ROAD

75

WESTBOUND

GENESEE ROAD

WESTBOUND

GENESEE ROAD

.·.;

··' FIGURE 17b

I

,. · .

. ·

••••

. ·. ···. .

.

.

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)0 3

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. ··.· \:j . REMARKS

0 1966 ,' 1967 ·•

D 1968 0 1969

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Q-~

LEGEND

i •

:

'

'

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• '

I

i

COLUMBIAVILLE RD.

'

ACCIDENT STUDY COLLISIOH DIAGRAM

.

76

----

i

'

'

I

22 BIT '

'

'

KLAM RD FIGURE 18

MICHIGAN DEPARTMENT OF STATE HIGHWAYS TRAFFIC AHD SAFETY OIVISIOH

. Location

St

c.s. Jackknife , -. ·c - Injury ) Rate /100 mvm

Miles Driver .lritent . ....+---..,.

Overturned -vfo • Deer ( ·l (V 0 Drawn QVW Date 1·27·7Q

Backing Fatal ( ) Rate I mv; Plan No. #g ' -- Violator :. Y

f·Form 1547 (Rev. ~/69) Sheet of

77

' i

EASTBOUND

COLUMBIAVILLE ROAD

WESTBOUND

COLUMBIAVILLE ROAD

( t

FIGURE 18a

N FJf) \ - .

'

--------··--· -·----- --- [1}-~-"'--.·. -.lll . ~~

\ '·,·~,

."\, __ Iii>

REMARKS

r) \~

LEGEND

Stop Sign Yield Sign

s 1-. y 1-

ACCIDENT STUDY

COL LIS ION DIAGRAM

Stop&Go.Signol + R Flashing Beocon .y~y

t--~---'---~_::::::.._ __ -'----+--=-1 Accidents- Total---,-'~----~---+ ·Pedestrian • • f · ·® {~~:l Fatal •

Injury o Skidding o o Q Jackknife ...,.--.,.,_

Overtur~ed.~~- "/- .. Backing ·--

Tree . ·· .. ~ P.O. '-···

Out of Control f• -Driver lnte_nt_ ~ Decu .-',.G) _ Violator '

· Injury __ ...:__..:...;;·~._:..

Fatal

ADT _____ _

/100 mvm, Rate-----'----'-'-,;,;

Rote I mv:

FIGURE 19

MICHIGAN DEPARTMENT OF STATE HIGHWAYS TRAFFIC AND SAFETY DIVISION

Location SOWC RO. Q I 10 O.?''i Ml

?'vi FIFLD TWf'

L /\ F' €C ~-~: : ... ,

~------------------------~ c.s. Miles Drawn G \1 W Dote 10 14 ·:70

Plan No. #10

orm 1547 (Rev. 5/69) Sheet of

'l 1

r 1 ( ;

(. l t J

I.·. I I ' ' I

1 i ! I

79

EASTBOUND

BOWERS ROAD

WESTBOUND

BOWERS ROAD

FIGURE 19 a

. j

UMARKs-·

1966 1967 I u lor·, c)· -:_..! \.,... '"'

' .. :.J (:)

D.'.!

rr l I

I r'·~ .. , I i\" l (

80

EJ CJI S

·----+----------·---:::. .... ~~---,-~-L:~L ~))"' ---QJ ~--liD

-----~-L . ~-----------ill ,.

l

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24 BIT

..,-

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i I

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EASTBOUND

BOWERS ROAD

81

NORTHBOUND

MEYERS ROAD

WESTBOUND

BOWERS ROAD

FIGURE 20 a

'i I I

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i.

1 : _:l

'i ,I

I I

I l t I

i 1 I .

82

SOUTHBOUND

LINCOLNSHIRE DRIVE

EASTBOUND

BOWERS ROAD

WESTBOUND

BOWERS ROAD

FIGURE 20b

------------- -- -

I

22 BIT

~) REMARKS

0 1966

/967 0 ·/968 0 1969

; '( ~ ' .

BLACK8 CORNERS RD.

I

22811

I I I

~ WEYER RD.

LIBRARY michigan dcpurtment of

state highways

LANSING

FIGURE 21

83.

ACCIDENT STUDY COLLISION DIAGRAM

i MICHIGAN DEPARTMENT OF STATE HIGHWAYS. LEGEND TRAFFIC AND SAFETY DIVISION

Stop &_ Go Signal ~ I! Stop Sign S .,_ Period: .....L/9,L6~6(._TUH--l.!...CR~U~----'-+ - "(' - Yield Sign Y .,_ 5

Flashing Beacon y F. 'f ~--~-----~:__-----+--:::::----1 Accidents- Total-.,...,--~d_-------+

Location

WEYER RD. at BLACKS CORNERS RD.

IMLAY TWP.

Fatal • Ped~strian .. ~. ·® 2 ¢? P.b. ADT Injury Tree LAPEER co. 0 Skidding ~ c Q. Out.ofControl J.,..-- 3

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84

SOUTHBOUND

BLACKS CORNERS ROAD

WESTBOUND

WEYER ROAD

FIGURE 2la

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state highways

LANSII\IG

• 86 : -

I

----------------~~--------------------------~~~--------------------~:~------------------------------------~~----------------~-----------' ~ ~-

Fatal __ ...

Injury --o Skidding o o 0 , Jackknife Overturn•d --1-Backing ...__ _

LEGEND

COLUMBIAVILLE RD.

.. --

I ;

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P.O.

Injury

Fatal

I I I

ACCIDENT STUDY COLLISION DIAGRAM

ADT

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87

EASTBOUND

COLUMBIAVILLE ROAD

WESTBOUND

COLUMBIAVILLE ROAD

FIGURE 22a

.... ••

.

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.-.•.·1·· .. ·'

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.

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RI!MARKS

0 1966

1967 0 1968 0 1969

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• . . 88

~se-

'-----------------~~ '~r~o----~----~J (L_ ____________________________ ~------------------; i

I

24 BIT.

CLARK RD. •

~~ '4 3 ~·· 2. •

! NEWARK RD. j

i

I '

' I i j

l' IGURE 2 3 ·.

. ACCIDENT STUDY

COLLISION DIAGRAM

i MICHIGAN DEPARTMENT OF STATE HIGHWAYS LEGEND

•

TRAFFIC AND SAFETY DIVISION .

+ I Location Stop & Go Signal. s R Stop Sign i S 1- Period: -LI9L.:=6~6""-.JT_!.H....!J_R-'.:U""--'-J9~8"-'9"'----__.,.;I NEWARK RD. 0.5 TO 0.25 MI. EAST OF F B . ).._ Yield Sign : Y t- 4 ... ·, CLARK RD . lashing. eac~n Y-\,V-Y .. i Accidents- Total---,..:.--------_..

f,---.,..-------=::_----j-:;::;:---j LAPEER TWP.

____ ____,, II 1\PFFR co Fatal .

• P.edestrian .. i. ·® 4 Tree 0 P.D. ADT lnj~ry 0 Skidding " c c Out of Control ~ ~ ...,...... 0 ( ) Jackknife

Driver Intent ~ Injury Rate

Overturned --1- 0 Deer ; V ( ) Rate s-acking -.,.._·---+ . Violator ·· ::i Fatal /100 mvm, c.s. Miles

Drown DVW Date 2··9-70

I ' Plan No. ·. *Is mv:

form 1547 (Rev. 5/69) Sheet __ J.,..-_of_.;.l __

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89

EASTBOUND

NEWARK ROAD

WESTBOUND

NEWARK ROAD

FIGURE 23a

90

APPENDIX lr

/--(

I i \.

Section B. Regulatory Signs Regulatory Signs shall be used to inform highway users of

traffic laws or regulations that apply at given places or {)n given highways. They are essential to indicate the applicability of legal requirements that would not otherwise be apparent. Great care must be exercised to see that they are erected wherever needed to fulfill this purpose, but unnecessary mandates should be avoided.

Included among regulatory signs are some, like those marking the end of a restricted zone, that are related to operational controls though not in themselves imposing any obligations or prohibitions.

Regulatory signs shall be erected at those locations where the regulations apply and shall be mounted so as to be easily visible and legible to the motorist whose actions they are to govern. Signs that have been erected but are no longer applicable shall be removed. Regulatory signs cannot be expected to command respect and obedience unless the regulations thereon set forth are adequately enforced.

Regulatory signs are classified in the following groups:

(1) Right-of-Way (Rl Series)

(2)

(3)

(4) (5)

(6)

a. "STOP" Sign b. "YIELD" Sign Speed Movement a. Turning b. Alignment c. One Way d. Exclusion Parking Pedestrian Miscellaneous

(R2 Series) (R3 Series)

(R4 Series) (R5 Series) (R6 Series)

With few exceptions, hereinafter detailed in the specifications for individual signs, regulatory signs are rectangular in shape with the larger dimension vertical and have black legends on white backgrounds. The wincipal exceptions referred to are the "STOP" sign, the Yield sign, the One Way arrow, and the Parking signs.

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STOP SIGN

SlOP

Reflectorized R1-1-24 24" x 24" ( 8" letters) Rl-1-30 30" x 30" (12" letters) Rl-1-36 36" x 36" (12" letters)

All "STOP" signs shall be reflectorized or internally illuminated so that the shape, color, and legend will be comparable to that in day time conditions and will not produce detrimental glare to traffic.

The "STOP" sign may be supplemented by two alternating red flashing beacons in the face or by one red flashing beacon directly above the sign. Such beacon(s) shall be operated continuously.

Place at the point where it is desired to have traffic stop, or as near thereto as possible at the following locations:

1.

2.

3.

4.

On streets or highways intersecting a through street or highway.

Railroad crossing where a stop is required by order of the appropriate public authority.

Opposite all Stop lines applied on the pavement, except at intersections controlled by a traffic control signal.

At intersections where a flashing red beacon exists.

Tbere shall be no "STOP" signs on approaches to an inter-section where such approaches are controlled by a traffic control signal.

An overhead internally illuminated "STOP" sign may be used in lieu of roadside "STOP" signs.

Secondary messages shall not be used on the face of a "STOP" sign. At a four-way stop intersection, each "STOP" sign may

92

be supplemented by a separate panel reading "4-WAY". Where this panel is used in conjunction with an R1-1-24, it shall be 24" x 9" with 5-inch legend. Where used with an R1-1-30 or R1-1-36, it shall be 30" x 12" with a 7-inch legend. Each panel shall have a black legend and border with a white reflectorized background. No additional sign shall be displayed with a "STOP" sign except one of the following: R3-1, R3-2, R3-3, R3-5, R3-6, or R3-23.

A hand held "STOP" sign may be used by Traffic Regulators as provided in Part II, Section E. Drivers facing the hand held "STOP" sign shall come to a complete stop and remain standing until an indication is given to proceed.

For placement see figures 1-3 and 1-4 and for special interim application see page 409.

YIELD SIGN

Reflectorized

R1-2-36 36" Equilateral Triangle (8", 3" and 2%" letters)

All Yield signs shall be reflectorized or internally illuminated so that the shape, color, and legend will be comparable to that in day time condition and will not produce detrimental glare to traffic.

Place at the point where it is desired to have traffic yield or as near thereto as possible at the following locations:

1. At the approach to an intersection where it is necessary to assign right-of-way to the major road, but where a stop is not necessary at all times.

2. At any location where a special problem exists and where an engineering study indicates the problem to be sus-ceptible to correction by use of the Yield sign.

LIBRARY michigan department of

state highways LANSING

93

i·--. :

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,, i

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.I

Section C. Warning Signs Introduction

Warning signs shall be used for the purpose of warning traffic of existing or potentially hazardous conditions either on or ad-jacent to the roadway. Warning signs require caution on the part of the motorist and may call for reduction of speed or other maneuver in the interest of his own safety and that of other motorists and pedestrians. Adequate warnings are of great assistance to the vehicle operator and are valuable in safeguarding and expediting traffic. However, the use of warning signs should be kept to a minimum. Too frequent use of them or their un-necessary use to warn of conditions which are apparent tends to bring disrespect for all signs.

The conditions warranting warning signs are classified in the following groups according to the type of conditions to which they are applied:

1. Changes in Horizontal Alignments (W1 Series)

2. Intersections (W2 Series)

3. Advance Warning of Control Devices (W3 Series)

4. Converging Traffic Lanes (W4 Series)

5. Narrow Roadways (W5 Series)

6. Changes in Highway Design (W6 Series)

7. Grades (W7 Series)

8. Roadway Surface Conditions (WS Series)

.9. Schools and Pedestrians (W9 Series)

10. Railroad Crossings (W1 0 Series)

11. Entrances and Crossings (Wll Series) 12. Miscellaneous (W12 Series)

13. Construction and Maintenance (W13 Series) •

Warning signs with certain exceptions shall be diamond-shaped (square with one diagonal vertical) and shall have a "Highway Yellow" background with black legend. These exceptions are

*Special warning signs for highway construction and maintenance projects are to be found in Part II of this Manual.

94

r (-

the Railroad Crossing signs, the Target Arrow signs, the Ad-visory Speed panel, the Exit Speed sign, the Obstruction panel, and the Lattice Background. Other exceptions to the diamond shape are provided for in the case of temporary signs for highway construction and maintenance.

The use of warning signs should be limited to those standard signs set forth in this section. However, after the Engineer has exhausted all possibilities, it may be found that no standard sign fits the situation and warning signs, other than those specified, may be required. Such signs shall conform with the general specifications for size (30" minimum), shape, and color of warning signs. All warning signs having significance during hours of darkness shall be reflectorized or illuminated.

95

{

CURVE SIGN

Reflectorized

W1-2-30 30" X 30"

W1-2-36 36" X 36"

W1-2-48 48" X 48"

The Curve sign shall be used to denote changes in the horizontal alignment of all roads (except minor roads and streets where in the judgment of the engineer the use of this sign is unneces-sary) where a ball bank indicator or Devil Level registers 10° or more at speeds between 30 and 60 miles per hour, and at such other locations where the change in alignment of the road-way is not apparent to the driver. Additional protection may be provided by use of the Curve Speed panel (W12-1).

The Curve sign shall be located in advance of the point of curvature at the approximate distance indicated below:

85th Percentile Speed

35 & Below 36-45 45-55 56 & Over

250' 400' 550' 750'

Curves that are less than 400 feet apart shall be designated by the W1-4 sign.

For placement see figures 1-11 and 1-35.

96

('

' l

r 1 ~----1 ~'-'

TARGET ARROW SIGN

Reflectorized

Wl-6-48 48" X 24"

Wl-6-96 96" X 48"

This sign may be used as a supplement to a Turn or Curve sign for potentially hazardous turns or curves. To increase its target value and to obscure misleading topography, the sign may be mounted on a Lattice Background (Wl2-10).

Where further emphasis of the required movement is desired, the Wl-6-96 may be used in lieu of the unit consisting of the Wl-6-48 and the Wl2-10.

This sign shall not be used to mark the ends of medians, centerpiers, etc., where there is no change in the direction of travel for all traffic. Further, it shall not be used as a route directional confirmatory marker or in any location where an intersecting street or highway of equal or nearly equal importance presents a choice of movement.

When used, the Target Arrow sign shall be erected in target position and, if possible, mounted high enough to be visible for at least 500 feet. It shall be placed at five feet minimum bottom height and two feet from the edge of the shoulder or curb face.

97

BI-DIRECTIONAL TARGET ARROW SIGN

Reflectorized

Wl-7-48 48" X 24"

Wl-7 -96 96" X 48"

The Bi-Directional Target Arrow sign may be used at "T" or "Y" intersections to inform the driver of the abrupt changes in highway alignment.

This sign shall not be used to mark the ends of medians, center-piers, etc., where there is no change in the direction of travel for all traffic. For low speed minor streets a diamond hazard marker may be used in lieu of the W 1-7.

When used, this sign shall be erected in target position and, if possible, it should be mounted high enough to be visible for at least 500 feet. It shall be placed at five feet minimum bottom height and two feet from the edge of the shoulder or curb face.

Where further emphasis of the required movements is desired, the Wl-7-96 may be used in lieu of the Wl-7-48.

98

' l

"T" SYMBOL SIGN

Reflectorized

W2-4-30 30" X 30"

W2-4-36 36" X 36"

This sign may be used to warn traffic approaching a "T" intersection on the road that forms the stem of the "T", i.e., where traffic must make a turn either to the right or to the left. This sign should not generally be used on an approach where traffic is required to stop before entering the intersection, nor at a "T" intersection that is channelized by traffic islands, nor where junction signs or advance turn arrows are present.

The relative importance of the intersecting roads may be shown by different widths of line. It may also be desirable to place a Bi-Directional Target Arrow sign (Wl-7) at the head of the "T" in target position.

Where used, the "T" symbol sign shall be located in advance of the intersection at the approximate distance indicated below:

85th Percentile Speed

35 & Below 36-45 46-55 56 & Over

250' 400' 550' 750'

For placement see figure 1-11.

99

['·'• '~) '· i •'

l·.i I

I

1.;

I l ,_I

STOP AHEAD SIGN

Reflectorized

W3-1-30 30" x 30" (6" letters)

W3-1-36 36" x 36" (8" letters)

The "STOP AHEAD" sign shall be erected in advance of an intersection where traffic is required to stop and the "STOP" sign is not visible to motorists for a sufficient distance or where emphasis is needed because of poor observance of the stop. The "STOP AHEAD" sign may also be used in advance of a red flashing beacon.

Where required. the W3-1-30 shall be used in advance of a 24-inch "STOP" sign and the W3-1-36 in advance of a 30 or 36-inch "STOP" sign.

Except 'where used on State trunkline highways at junctions with other State trunkline highways, it shall be located in advance of the required stop at the approximate distance indicated below:

85th Percentile Speed

35 & Below 36-45 46-55 56 & Over

250' 400' 550' 750'

For location on State trunkline highways see figures 1-17 and 1-26.

For placement see figure 1-11.

100

CURVE SPEED PANEL

35 M.P. H.

Reflectorized

W12-1-21 21" x 21" (10" and 3" letters) W12-1-24 24" x 24" ( 12" and 3" letters)

The Curve Speed panel may be used as a supplement to the W1-1 through W1-5 signs only and shall display a speed legend in increments of five miles per hour. Since this legend is advisory, no Traffic Control Order is required. The W12-1-21 shall only be used with the appropriate 30 or 36 inch W1 sign and the W12-1-24 with the appropriate 48 inch W1 sign.

To determine the accurate negotiable speed on a turn or curve by the use of a ball bank indicator or Devil Level, several runs should be made in the same direction to obtain the most accurate reading possible. Readings obtained froin several trial runs in the same direction shall determine the curve speed for that re-spective direction. Since the comfortable turn or curve speed on a specific turn or curve may vary, depending on direction of travel, the same procedure shall be used to obtain the curve speed for the opposite direction.

The following table indicates the speed to be used on the Curve Speed panel.

101

f) u

Indicator Reading Speedometer Reading

14 o 22, 21, 20, 19, or 18 14° 17, 16, 15, 14, or 13 14° 12, 11, or 10

Appropriate Panel Legend

20 15 10

The speed legend displayed may equal but never exceed that of the posted speed limit in a Speed Control Zone.

For placement see figure 1-11.

EXIT (RAMP) __ MILES PER HOUR SIGN

EXIT

25 M.P.H.

Reflectorized

W12-2-48 48" x 60" (8", 16", and 6" letters)

This advisory sign shall be used only at ramps or exists at interchanges where it is necessary to indicate a lower speed. Where deemed appropriate, the word "RAMP" may be used in lieu of "EXIT".

If a safe speed indication is required for a second curve on an off-ramp well beyond the gore, a curve sign with a curve speed panel should be used.

For placement see figure 1-35.

102

A I; I I I L_i

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., '

LATTICE BACKGROUND

Bi-directional

Right Directional Left Directional

Reflectorized

W12-10

The Lattice Background shall only be used in conjunction with a warning or guide sign as outlined herein where greater emphasis is desired.

Where used for advance warning signs, (such as the Curve, Turn, or "STOP AHEAD" signs) an installation may be placed on the right, or both sides, of the roadway (a left directional on the right side and right directional on the left).

Where used in target position (such as for the Large Arrow sign or route marker with route marker arrow) a single instal-lation (left or right directional) with the diagonals pointing down in the direction traffic is required to turn shall be installed. For cases where traffic may proceed in two directions, (where the Large Double Arrow sign or a bi-directional route marker arrow is required) the bi-directional shall be used.

Where used, the Lattice Background shall be placed in such a position that the sign mounted thereon is at the bottom height prescribed under the sign description. The entire unit shall be

103

l I

l I

ll

placed six feet to the right (left) of the pavement edge where used for advance signs and at a minimum of two feet beyond the usable shoulder or curb face when used for signs in target posi-tion.

For location see figure 1-17.

Figure 1-10. The lattice background is one method of providing greater emphasis of warning signs.

PRISON AREA SIGN

Reflectorized

W12-11-30 30" x 30" (5" letters)

The "PRISON AREA" sign may only be used along non-free-ways at maximum security prisons to discourage motorists from

104