RR-397- A Traffic Accident Analysis and Traffic Control ...€¦ · Holmes Road intersects Ford Boulevard to form a "T" intersec tion operating under traffic signal control. The right-of

.37

1.

2.

3.

4.

5.

6.

RECOMMENDATIONS

~

Construct additional laneage on Forest Avenue to permit two approach lanes. The left turn lanes should align opposite each other.

Since a minimal number (4%) of vehicles turn left from southbound Ford Blvd. and since this left turn can be made at another intersection, it is recommended that this left turn be prohibited. Use an overhead case sign with the legend "NO LEFT TURN" to accomplish this. Also, use two post-mounted "NO LEFT TURN" symbol signs, one on the n~ar right hand corner and one on the far left hand corner.

Erect Overhead Lane Use Control signs on southbound Ford Blvd. Also, erect a "RIGHT LANE MUST TURN RIGHT" (R3-7) sign on southbound Ford Blvd. to indicate a turn movement for this lane.

The new signal timing would include a 70 second cycle with a 64-36 percent split favoring Ford Blvd. and six percent (4.2 seconds) yellow clearance interval for each phase. The north and southbound traffic would operate for 50 percent (35.0 seconds), then the southbound traffic would get a red indication, while the delayed left turn and cotitinued thru movement for northbound traffic would operate for the remaining 14 percent (9.8 seconds). Traffic on Forest Avenue would be allowed 36 percent (24.2 seconds) to operat·e.

Apply pavement markings including pavement arrows to stress the function of each lane.

Skidometer tests have been ordered for all approaches to this intersection because of the substantial amount of wet pavement accidents.

Total

Estimated Cost

$44,550.00

$411.76

$ 2,095.70

$ 35.00

$583.40

No Cost

$47,675.86

1·.·.1

I ,::_J

(Proposed R3-7)

1 --+,~ I .

1 ¢ B (Proposed R3-.2 Facing North)

"' ,._

l

38

(Proposed R3-2 Facing North)

South

NOTE• Existing pavement Is shown shaded.

Figure 20

STATE OF MICHIGAN ~~;;-.::-----,--ll-;u=-.::_;__:_:_-lp R 0 p 0 sED INTERSECTION DEPARTMENT OF STATE HIGHWAYS

--•- i-=,---------+=:f~"'--'-'-1 A P P R 0 A C H DIAGRAM TRAFFIC & SAFETY DIVISION

OF I"LAN

FORM 1191 ...... ,

39

WAGNER ROAD AT LIBERTY STREET

Operational Analysis:

Wagner Road intersects Liberty Street to form a right-angle intersection with Wagner Road operating under stop control, There are two 36 in. stop signs located on Wagner Road and a flashing beacon is used to supplement .the stop signs,

Accidents:

~ 1971 1972 1973 Total

Right-Angle 3 6 6 15

Rearc);:nd 3 1 1 5

Ran Off Roadway 3 2 0 5

Miscellaneous 3 2 0 5

Total 12 11 7 30

The miscellaneous types included three sideswipes and two head on-left turn accidents. The accident rate was 3.2 ACC/MV. The large number of right-angle accidents can be reduced by changing the type of controls at this intersection.

[j MDSHT orm B .

~ WAGNER 40

221

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... .,.,._ ~

F 1547 (4/74)

I I

I l 201

~-/ L1 BE R T Y ------1:.( 22.' .

[l

I:~ F I I .. 1 I 1971 (12) ACC.j M.V. '' j RATE: 3.79

[;Aj WAGNER

.[1 ~ vtfr ;7"-

u ~ " .-~~ k LIBERTY

lJ ··~· ~ n -.,._

'

tJ 1972 (II) RATE: 3.48 ACC.jM.V. .·

[J rGNER !d -&=-I ! ·· ... ·.~ LIBERTY _j

[J .... 1

I i '197~ (7) RATE: 2..2.1 ACC/M.V. I i L)

STATE OF MICHIGAN LEGEND DEPARTMENT OF STATE HIGHWAYS

u AND TRANSPORTATION .

Stop & Go Signal -t", R Stop Sign . Location Ll BERTY AT WAGNER

s ... WASHTENAW co . ; -: ~ YioldSign y ... ( ·j L' Flashing Beacon Y Y j Figure 21

Fatal • Pedestrian --~--® Period: I g 7 I THRU 1973 3.2 ACC/M.V.

lJ Injury 0 Tree 0 Accidents- Total 30 . P.O. 2.2 Skidding CCC 7 I ( ) Out of Control '" ........ Injury ( ) Fatal Jackknife .....

[i Overturned ~,._ Driver Intent '(!) c.s. Miles Drown DFK Backing

Deer LOCATION 6 5--17-74 -- Violator X I Plan No. Date

--------'----·····················

41

NORTHBOUND WAGNER ROAD

SOUTHBOUND WAGNER ROAD

Figure 22

.___ __ -~---- ----

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(~ .. I

L l

\ ~ :

42

EASTBOUND LIBERTY STREET

l !

WESTBOUND LIBERTY STREET

Figure 23

43

1.

2.

3.

RECOMMENDATIONS

In an attempt to reduce the right-angle accidents, it is recommended that this location be converted to a 4-Way Stop. A 4-Way Stop will require two 36 in. Stop signs, two 36 in. Stop signs, two 36 in. Stop . Ahead signs and four "4-Way" Panels. The flashing beacon will also have to be converted to four red lenses.

Install an overhead street light~ ing system at this location.

Remove the Special Sign Background on the Stop Ahead signs at this intersection.

Total

,. j-:.

Estimated Cost

$290.72

$252.00

$48.00

$590.72

I i J

N 44

Remove Bi-directional Special Sign Background from W3-l

' "' "' 3:

"' "' '0

" .. "

.., 0

" " c.

Proposed R 1-3 J.. 'tiM v .. .. 0 0 0 ~

c. c. 0. 0 0 ~ ~

a. 0.

Existing Rl-1

LIBERTY RD.

Double Yellow Stop Bar

Proposed Overhead Lighting System

Existing Rl-1 -o "0

~ ~ 0 -o

~

0

0

" 0 " 0 4WAY Proposed Rl-3

"' 0 0 .. c.

0 .. c.

0 .. c.

:0

'

Replace "SLIPPERY WHEN WET"~ with we-5 W

"CAUTION ~ 0 (Existing) TRUCKS = 0::::

TURNINGu -

0:::: w :z (!) <{

3=: AUTH. NO.

Remove Bi-directional Special Sign

Background from W3-l

Figure 24 DRAWN

~~~---------+~~D~F~K~4 STATE OF MICHIGAN .--CONT. SEC. DATE PR 0 PO s E D DEPARTMENT OF STATE HIGHWAYS 3-19-75 INTERSECTION

---·-- REF. SCALE APPROACH DIAGRAM TRAFFIC 8c SAFETY DIVISION

SHEET OF PLAN

FORM 1191 (REV. ID-88) EOCO• 191iiM 5~71 "582.0

45

HOLMES ROAD AT FORD BOULEVARD


Holmes Road intersects Ford Boulevard to form a "T" intersection operating under traffic signal control. The right-ofway assignment is based on a 70 second cycle with a 64-36 ~plit favoring Holmes Road and clearance intervals of seven percent (4.2 seconds). A leading green arrow for left turns off westbound Holmes Road of 11 percent (7.7 seconds) is included in the phasing of this signal. A shopping center drive, located directly across from Ford Boulevard, has no traffic controls.

Accidents:

~ 1971 1972 1973 Total

Rear End 6 4 3 13

Turning 2 2 2 6

Sideswipe 2 2 1 5


Total 10 9 9 28

The miscellaneous types include two right-angles, one head onleft turn and one ran off roadway accident. The accident rate was 2.1 ACC/MV.

The utilization of a left turn green arrow that terminates without a yellow clearance interval is not in accordance with the Michigan Manual and creates an accident potential at this intersection.

r

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! SERVICE 46 DRIVE

24' .k:

.. .. ~ '-~ • .. 1l .. • ~l

o• • \1

~ 48'. HOLMES 48'

~ .. .. ~ .. •0

1971 {IO) 46' ;f RATE: 2.20 ACC.jM.V. FORD ~ERVICE DRIVE

.. • ll .. .. \1

HOLMES ·~ .

~

rt 1L ... •

1972 (9) FOR~t RATE: 1.98 ACCjM.V.

~ERVICE . DRIVE

.. ... y 7"rt.

~ HOLMES ~~-

~~ -----...__ -, ~

1973 (9) FORD RATE: 1.98 ACC.jM.V.

LEGEND MICHIGAN DEPARTMENT OF STATE HIGHWAYS

TRAFFIC AND SAFETY DIVISION

Stop & Go Signal + R Stop Sign Location FORD AT HOLMES

s ~

WASHTENAW CO. Flashing Beacon v-0-v Yield Sign

y ~

Figure 25

• Pedestrian .... ·® Period: 1971 THRU 1973 2.1 ACC./M.V. Fatal r-Injury 0 Tree 0 Accidents- Total 28 P.O. 20 Skidding Q; Q Q I

( ) Out of Control •" ... Injury 8 ( ) Fatal 0 Jackknife ----z-Overturned ~,....... Driver Intent ~ c.s. Miles Drawn DFK

Deer V Backing __ Violator v Plan No. LOCATION 7 Date 3,-21-75

EOCO• 196M 8-72 52350 Form 15478 (Rev, 11/70)

47

EASTBOUND HOLMES ROAD

WESTBOUND HOLMES ROAD

Figure 26

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I I

t l II L !

l i

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48

NORTHBOUND FORD BOULEVARD

SOUTHBOUND FORD BOULEVARD

Figure 27

49

1.

2.

3.

RECOMMENDATIONS

Change the present signal operation to a three phase system. Install a vertical signal arrangement (4 lenses) for westbound Holmes Road and green arrows for the right turn lane on eastbound Holmes Road and northbound Ford Boulevard. The new signal timing would include a 70 second cycle with six percent (4.2 seconds) yellow clearance intervals. The three phases would include one phase for east and westbound Holmes Road traffic (40 percent- 28 seconds), one phase for westbound Holmes Road traffic including the left turn movement on Holmes Road and the right turn from Ford Boulevard (20 percent -14 seconds), and one phase for northbound Ford Boulevard including the right turn from eastbound Holmes Road (40 percent- 28 seconds).

Apply pavement marking including ~avement arrows to stress the function of each lane.

Extend the flares and tapers on Holmes Road to provide enough laneage for vehicles to maneuver around waiting vehicles.

4. Close off the Shopping Cente~ service drive. There are other drive openings available to the east that provide access to the shopping center.

5. Erect two R3-7 "RIGHT LANE MUST TURN RIGHT" signs for the eastbound Holmes Road right turn lane.

Total

Estimated Cost

$204.00

$466.50

$31,500.00

$6,600.00

$71. 80

$38,842.30 I

I

Former Service

Drive

Proposed Barricade

iRAFFIC & SAFETY DIVISION SHEET OF PLAN.

FORM 1595 (REV. 10-68) ~97

"' "'

"' "'

"' "' "' _j_

50

FACING EAST

FORD

I 2'

I 2'

White Ski 2 4-'

Arrows

Rt6HT LAN£

MUST Proposed R3-7 ,. ..

Proposed R 3-7

''''"

m NEW CONSTRUCTION

Figure 28

EDCO• 196M 9-71 47520

51

PACKARD STREET AT HEWITT ROAD


Packard Street intersects Hewitt Road to form a right-angle intersection operating under signal control. The right-ofway assignment is based on a 70 second cycle with a 57-43 percent split favoring Packard Street and yellow clearance intervals of seven percent (4.9 seconds). There is also a ten percent (7.0 second) left turn green arrow for east and westbound Packard Street.

Accident:

~ 1971 1972 1973 Total

Head On-Left Turn 1 5 2 8

Rear End 1 3 4 8

Right-Angle 0 2 1 3

Turning 1 0 2 3


Total 3 13 10 26

The miscellaneous types include two sideswipes and two improper backing accidents. The accident rate was 1.4 ACC/MV. The operation of this location was changed in 1972 from stop control to signal control.

The use of a leading left turn arrow which terminates without warning is non-standard according to the Michigan Manual of Uniform Traffic Control Devices.

1--:i

I ·. N HEWITT 52 i

1 511

,---

~ • !

621 _f'" PACKARD 621

~ .. 1>0

•

1971 (3) 51 1 RATE: 0.49 ACC.jM.V.

.. HEWITT

1~ f) ~ ~r PACKARD

~l .. '

#~ t '

1972 (13) RATE: 2.13 ACC./M.V.

HEWITT

• lily

~ IL~ ·~Jr PACKARD ~l ~

• 1--> :1 1973 (10) RATE:. 1.63 ACC.jM.V. /

["]. STATE OF MICHIGAN LEGEND DEPARTMENT OF STATE HIGHWAYS

AND TRANSPORTATION

Lacatl"" H E W I T T AT PACKARD Stop & Go Signal +

1

R Stop Sltn 5 ... WASHTENAW co. -®- Yield Slvn y ... !]

Flashing Beacon Y Y Figure 29

Fatal • Petleotdqn ---··® Perletl: · I 9 7 I THRU 1973 1.4 ACC./._M.V. Tree

, Injury 0 0 Accidents~ Total 26 P;D. 16 Skidding Qcc.

Out of c .... tr•l "' .. 10 ( ) Faflll 0 ( ) Jackknife - ... ,..., ·. -Overtumed " ..- f• -- Driver lnfllnt

-sf c.s. Milo a Dr~~wn DFK l Backing

Deer plcHo He. L 0 C A T I 0 N 8 5-17-74

J -- Violator Dote

53

EASTBOUND PACKARD STREET

WESTBOUND PACKARD STREET

I_

Figure 30

1 .• I

'-!

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(· I !

I

I : . I

54

NORTHBOUND HEWITT ROAD

SOUTHBOUND HEWITT ROAD

Figure 31

55

1.

2.

3.

RECOMMENDATIONS

Type

A traffic investigation and a capacity analysis indicate that a left turn problem does not exist for traffic on Packard Street. It is recommended that the left turn arrows be removed.

Apply pavement markings including pavement arrows to aid in determining the function of each lane.

Erect overhead Lane-Use Control signs for all four approaches.

Total

Estimated Cost

$70.00

$894.80

$8,278.80

$9,243.60

1 I R3-5 R3-5a 56

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-IC

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< 0 0::: R3-6

1- [tJ 1--3: 4lr mliC I

-"' w L ::c c

·o c B A !£?

• - --~A~~~

j ,, .. J ' PACKARD RD.

~ite s k; e::. -~ au~ -- s ........ ~ -,:- - -I F'.-.2! Double Yellow- h I f

All ~I low

0

~J ~.-~ r~ ~r~ White-....~ l>

~e Skie:::.. ~ ........ OJI ~ ........ s -<

--=-fn -t -- -- -

I I AI I

~ t ,r- REMOVE

t- I oopJ

~ ! .;, ff ·o

!£? 0 a. -

~ ::. PN~ PND U)

l ¢A " I ..

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j (lis -.,

~ t---'- r I I Figure 32

AUTH· NO. DRAWNDFK STATE OF MICHIGAN

DEPARTMENT OF STATE HIGHWAYS CONT. SEC. DATE PROPOSED INTER SECTION

9-20-74 --·-- REF,

TRAFFIC & SAFETY DIVISION

SCALE APPROACH DIAGRAM SHEET OF I PLAN

FORM 1195 (REV. to.A) EOCO• 19iM 5-71 4512:0

57

WHITTAKER ROAD AT STONY CREEK ROAD


Whittaker Road intersects Stony Creek Road to form a "T" intersection with Stony Creek Road operating under stop control. There is a 36 in. Stop sign and supplemental flashing beacon on Stony Creek Road.

Accidents:

~ 1971 1972 1973 Total

Ran Off Roadway 1 9 3 13

Sideswipe 1 2 2 5


Total 3 12 6 21

The miscellaneous types included one rear end, one involving debris falling off a vehicle and one right-angle accident. The accident rate was 3.9 ACC/MV.

Thirteen of the accidents occurred at night. ran off roadway accidents occurred at night.

Ten of the thirteen

1971 (3)

1972 (12)

WHITTAKER ~

197 3 (6)

Stop & Go Signal

Flashing Beacon

Fatal e Injury -o Skidding o 0 0 , Jackknife ---.....,_ Overturned ----7,.._ Backing _...._ ~

LEGEND

R Stop Sign ).__ Yield Sign

y~y

s .... y ....

Pedestrian • • ·- ·@ Tree 0 Out of Control a a ._

Driver Intent (!) Deer Violator y I

RATE: 1.69 ACC/ M.V.

RATE: 6.76 ACC.jM.V.

RATE: 3.38 ACC./MV.

STATE OF MICHIGAN DEPARTMENT OF STATE HIGHWAYS

AND TRANSPORTATION

Location WHITTAKER AT STONY CREEK WASHTENAW CO.

Fi ure 33

Period: 1971 TH RU 1973 3.9 ACC/M.V. J

Accidents- Total _ ____,2'-'I ___ P.D. 12

Injury _ _____,8'-----'--~)'-- Fata I ---'------'-___!.

C.S. ---- Miles ____ Drawn DF K

Plan No. LOCATION II Date 5-23-74

59

.\

NORTHBOUND WHITTAKER ROAD

', i

l.·l I , • _I

SOUTHBOUND WHITTAKER ROAD

Figure 34

r-,. \

' ' I , I I ' . .J

I ·I j

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\ i I

60

EASTBOUND STONY CREEK ROAD

WESTBOUND STONY CREEK ROAD

Figure 35

61

1.

2 •

3.

RECOMMENDATIONS

Change the Bi-Directional Target Arrows to Directional Target Arrows (96 x 48) on both north and southbound Wittaker Road,

Apply pavement markings - center line, edge line and stop bars -to aid motorists during periods of darkness.

Create a safe landing area by removing the trees, bushes, poles, etc., south ,of Stony Creek Road.

4. Relocate the guida sign which is in target position for southbound Whittaker Road to a position north of the intersection.

5. Erect Road Name signs (D3-2a) on the existing Side Road warning signs on Whittaker Road on both sides of the intersection.

6. Erect delineators at 50 foot intervals along the west side of Whittaker Road for a distance of 500 feet each direction from Stony Creek Road to provide visibility at night.

Total

Estimated Cost

$126.64

$120.00

$500.00

$16.00

$41. 84

$183.00

.-.-~

$987.48

; ,_·

Replace WI-I a Wl2-1(35mph) w; Wl-2 a

Proposed D3-2a (STONY CREEK

Existing Dl-2, Relocate from 20' southeast of Stony Creek Rd.

R e pI ace W I - 7 ~

W3-l "STOP AHEAD"

Existing W2-2

Delineators spacing every 50 feet

White Edge Lines---

Proposed D3-2a (STONY CREEK RD.) on Existing W2-2

STATE OF MICHIGAN DEPARTMENT OF STATE HIGHWAYS

SEC-

--. -- '-==--------+=~---'-~--'-..:'~ TRAFFIC. & SAFETY DIVISION

SHEET OF PLAN

FORM 1595 (REV. 10-68) ~97

a

PROPOSED INTERSECTION DIAGRAM

Figure 36

EOCO• 196M 9~71 47520

63

TEXTILE ROAD AT MCKEAN ROAD


Textile Road intersects McKean Road to form a "T" intersection. Traffic is controlled at this intersection by two traffic signals which operate on flasher (yellow for Textile Road and red for McKean Road) except when there is a shift change at the adjacent Ford Motor Company plant. Included in the phasing of this signal is a 12 percent (7.2 seconds) leading green arrow for left turns ... !.,

off westbound Textile Road. There are two green arrows for right turns off eastbound Textile Road and northbound McKean Road.

Accidents:

~ 1971 1972 1973 Total

Rear End 1 5 1 7

Turning 2 3 0 5

Right-Angle 2 1 0 3

Head On Left Turn 1 1 1 3


Total 7 11 2 20

The miscellaneous types included one parked vehicle and one sideswipe accident. The accident rate was 1.1 ACC/MV. The use of a leading left turn arrow which terminates without warning is in violation of the Michigan Manual of Uniform Traffic Control Devices; however, this only occurs during the stop and go operation of the signal.

~ MDS HT F 547 B (4/74). orm 1

i] 64

i

Jt{ ·., 41 1 TEXTILE 34

1

c

1. \ I

I

MCKEL t '

~~ N

1 I 1971 (7) ~~~ ACC/M.V. i RATE: 1.14

l~ (:'·:.

J f! TEXTILE ~

;:.-_: "----;---o ~--··· r -~

r~ H '] 1972 (II)

MCKEAN"

J -~) RATE: 1.79 ACC/M V

('·_j -"-I I

'·~

f~ 1 j

] ·~ \:. i

r I TEXTILE 'l II

t 'I ['·'

\j

;~ 1973 (2) MCKEAN RATE: 0.32 ACC.jM.V.

'f STATE OF MICHIGAN LEGEND DEPARTMENT OF STATE HIGHWAYS

I AND TRANSPORT A liON

1

f Stop & Go Signol +/ R Stop Siun Location TEXTILE AT MCKEAN

s ~ WASHTENAW ( 0. ! i .4f- Yield Sign y ~

i 1, Flashing Beacon Y F Y Figure 37 L\

11, Fatal -· Pedestrian -----® Period: 19 7 I THRU 1973 1.1 ACC.[M.V.

\I Injury -o Tree 0 ,

Accidents- Total 20 P.O. 18 L; Skidding o o o , I Jackknife --......,_ Out of Control ..... - Injury 2 ( ) Fatal 0 ( )

\; · 1: Overturned """""'!-- Driver Intent (!)' c.s. Miles Drawn DFK ' I Deer

LOCATION l [' Backing ____. - Violator X Plan No. 13 Date 5-23-74 '

65

,;,.•I

EASTBOUND TEXTILE ROAD ' ' I ,

I

WESTBOUND TEXTILE ROAD

1:_·'

Figure 38

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66

NORTHBOUND MCKEAN ROAD

SOUTHBOUND MCKEAN ROAD

Figure 39

67

1.

2.

3.

4.

RECOMMENDATIONS

Change the present signal operation to three phases. The new signal timing would include a 70 second cycle with six percent (4.2 seconds) yellow clearance intervals. The three phases include one for east and westbound Textile Road traffic (40 percent- 28.0 seconds), one for westbound Textile Road traffic including the right turn from McKean Road (33 percent- 29.7 seconds) and one for northbound McKean Road traffic including the right turn from McKean Road (33 percent- 29.7 seconds). A vertical signal arrangement (4 lenses) .should be installed for westbound Textile Road.

Apply pavement markings including pavement arrows to stress the function of each lane.

Reconstruct additional laneage to provide two approach lanes per approach.

Erect two R3-7 "RIGHT LANE MUST TURN RIGHT'' signs for the eastbound right turn lane on Textile Road.

Estimated Cost

$280.00

$467.50

$32,625.00

$71. 80

Total $33,444.30

r

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l---z I-4-:J o

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-L l " IIJGREEN ARROW

68

~ _ ~~-~--------~----------------------~M~C~K~E~A~N~--~ 'IIIII' ~-~ '-.1, White-:::..._ 0 7~ r-1-"\. ""'O;;;;ble Yellow-=:-. ~---~~--~~~----------------------------------------~ • f/1' '&' JlEI ONLY ONLY

FA~NG t i.'!!J GREEN ARROW EAST ~ ~ RtGHTLAM[

o ' MUST Proposed R3-7 JUAN RIGHT

~~ ~ .~ -0 ll 1' "- 1~

w ....I IX w 1-

> ~ "---. \..:-( ~ [( T( T( .\

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"' "' "' 'j

""" LAIOE MUST ........ "

AUTH. NOo

¢A ¢s ¢c Proposed R3 -7

~NEW CONSTRUCTION

DRAWN

DFK DEPAR.;~~~~~~~~~~~~:HWAYSI-,co=N=T,-,s""Ec.,--~----11-o=A=TE=-~_!!-1 P RQPQ SED INT ERSECTIQ N

I 1-14-74 -·- REF, SCALE APPROACH DIAGRAM

SHEET OF I PLAN Figure 40 TRAFFIC 8c SAFETY DIVISION

FORM IHS (REV. 1048) EDCO• 19iM 5·71 <45820

,, .

TEXTILE ROAD AT BRIDGE ROAD


Textile Road intersects Bridge Road to form a four-legged intersection. The south leg is a private drive leading into the Ford Motor Company plant. Traffic is controlled at this intersection by two signal heads which operate on flasher (yellow for Textile Road and red for Bridge Road and the private drive) except when there is a shift change at the adjacent Ford plant. Included in the phasing of this signal is a 12 percent (7.2 seconds) leading left turn arrows for left turns off east and westbound Textile Road.

Accidents:

Type 1971 1972 1973 Total

Turning 3 1 0 4

Right-Angle 1 1 1 3


Total 5 3 2 10

The miscellaneous types included two rear ends and one ran off roadway accident. The accident rate was 0.8 ACC/MV. The use of a leading left turn arrow which terminates without warning is in violation of the Michigan Manual of Uniform Control Devices; however, this only occurs during the stop and go operation of the signal.

N .. .... .. , ........

' BRIDGE MICHIG,,_;·: '!;' T. STAH HIGHWAY~ .',)

! /

l r! "--.. 321 TRANSPORT AT ION LANSING, MICH.

L --~L ------------------ - ····--- ··-··-··

I I • .._-I 'J , --c.

.. .\. TEXTILE: 32 !

l ·---~-- --~ --~ ---~-~- ·--~----""'-

I' 1971 (5) 20' zc- 1 1.13 Accjl.;rv ,)

l /3RIDGE '

lj ~L ·-·--·----·----- .......... ,, ' -.;--------~~------ ·----.. ~ .. ·--- ·-<· ·- •

li ~

TEXTILE ,'-i

l 1------ .. --------------- ~--------~-------

.......... _ I I I .. : 72(3) -,Clv .. MV -.. "-AU/

' ___ ,

lj I BRIDGE I .i

! i

~---- ~ -~·-»·-------··· ...

q ""' • 4 v

J TEXTILE

1 (------·--------·--·---- ------- ------- -- --. --~------ - . -------- -

1 i AC0V!V (2)

I

I , : 73 • 0.45 I I

.. ! MICHIGAN DEPARTMENT OF STATE HIGHWAYS r LEGEND TRAFFIC AND SAFETY DIVISION

I +R LOcation TEXTILE AT BRIDGE ! Stop & Go Signal

I, Stop Sign s 1-

Yield Sign y 1- WASHT:CNAW co Flashing Beacon v--0-v

::! Figure 41

I' Fatal • Pedestrian .... ·0 Period: 1971 Tt:!Bli 1273 0.8AC CLMV Injury 0 Tree 0 10 E Accidents- Total P.O. ' Skidding 0 Q 0

4 ( ) ( )

J Jackknife ---..._ Out of Control .. , ..... Injury Fatal

Overturned ~,.._ Driver Intent

~ c.s. Miles Drawn JLM Backing __ Deer

Violator v Plan No. LOCATION 20 Date 5-.:"-74

EDCO• 196M 8-72 52350 Form 15478 (Rev. 11/70)

71

EASTBOUND TEXTILE ROAD

' ' l \

'. '·

WESTBOUND TEXTILE ROAD

Figure 42

i . I

I

I

./ I l

II \ -;

72

NORTHBOUND BRIDGE ROAD

SOUTHBOUND BRIDGE ROAD

Figure 43

73

l.

2.

RECOMMENDATIONS

Eliminate the left turn arrows at this intersection due to a small number of left turns. The signal timing should be 60 second cycle with a so-so percent split and yellow clearnace interval of seven percent (4.2 seconds).

Apply pavement markings including pavement arrow~ to define the functions of each lane.

Estimated Cost

$70.00

$468.18

Total $S38.18

!

BRIDGE ri00'~15D'-!

r .

'1,_\.' ~· Do bl Y II __ , Ye~ Skipp============;;;"~·~=·~O~W==:}~1f~ -= 0 <~~2 .a q....,..,R_,

White:Y ""'f '"'f

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STATE OF MICHIGAN D F K DEPARTMENT OF STATE HIGHWAYS CONT. SEC. DATE PROPOsED INTER SECT I ON

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75

SUMMARY OF RECOMMENDATIONS

The Department of State Police submitted 20 high accident locations for Washtenaw County to the Michigan Department of State Highways and Transportation. After an in-depth study of these locations, we formulated recommendations for 10 of them. The recommendations are as follows:

Location Number

1

2

3

5

Location Description and Cost Estimate

Carpenter Road and Packard Street

$10,028.20

Jackson Road and Wagner Road

$ 9,470.10

Ford Boulevard at Russell Street

$131,560.80

Ford Boulevard at Forest Avenue

$47,675.86

Recommendations

Change the signal timing. Install a signal face for left turns off Packard Street. Apply pavement markings. Erect overhead Lane-Use Control signs.

Remove the left turn phase. Apply pavement markings. Erect overhead LaneUse Control signs.

Construct additional laneage to pr~vide two approach lanes. Eliminate left turn green arrows. Erect a four way case sign (R3-10) for each left turn lane. Apply pavement markings. Resurface the intersection.

Construct additional laneage on Forest Avenue. Eliminate the left turn from southbound Ford Boulevard. Erect overhead Lane-Use Control signs on Ford Boulevard. Erect a R3-7 sign on southbound Ford Boulevard. Change the signal timing to include a delayed left turn. Apply pavement markings.

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Location Number

6

7

8

11

13

20

Location Description and Cost Estimate

Wagner Road at Liberty Road

$590.72

Holmes Road at Ford Boulevard

$38,842.30

Packard Street at Hewitt Road

$9,243.60

Whittaker Road at Stony Creek Road

$987.48

Textile Road at McKean Road

$33,444.30

Textile Road at Bridge Road

$538.18

76

Recommendation§_

Convert the operation of this intersection to a 4-Way Stop. Erect Rl-1 and W3-l signs on east and westbound Liberty Street. Install a overhead lighting system. Remove the special sign background.

Change the signal timing. Apply pavement markings. Close off shopping center service drive. Construct additional laneage on Holmes Road. Erect two R3-7 signs for eastbound Holmes Road.

Remove the left turn phase. Apply pavement markings. Erect overhead Lane-Use Control signs.

Replace Wl-7 Arrows with Wl-6 Arrows on north and southbound Whittaker Road. Apply pavement markings. Create a safe landing area. Relocate the guide sign. Erect D3-2a for north and southbound Whittaker Road. Erect delineators at 50 foot intervals on the west side of Whittaker Road.

Change the signal timing. Apply pavement markings. Construct additional laneage. Erect two R3-7 signs for eastbound Textile Road. Install a four level signal face for westbound Textile Road.

Eliminate the left turn phase for Textile Road. Apply pavement markings.

77

Furthermore, a few general recommendations were formulated that should be implemented by Washtenaw County.

1. Signalized intersections should have two approach lanes to provide adequate capacity at these intersections.

2. Green arrows shouldn't be terminated without going through a yellow and red indication as per the Manual.

3. A program should be initiated by the county for removing vision obstructions that are located in clear vision areas at intersections through the county.

4. Approximately 18 percent of the required regulatory signs on the Washtenaw County Primary Road System are in need of maintenance or new installation.

5. Approximately 20 percent of the required warning signs are in need of maintenance or new installation.

ESTIMATED COSTS

High Accident Location Recommendations $282,381.54

Control Devices Inventory 88,260.00

TOTAL $370,641.54

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78

APPENDIX!

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79

HIGHWAY SAFETY ACT OF 1973

Section

203 Rail-Highway Grade Crossings

205 Pavement Marking DemOnstration Program

209 Projects for High Hazard Locations

210 Program For Elimination of Roadside Obstacles

230 Federal-aid Safer

Highway System

Federal-aid (Except Interstate)

All Highways (Except Interstate)

Federal- aid (Except Interstate)

Federal-aid (Except Interstate)

Roads Demonstration Non Federal-Program aid

Types of Projects Finance

Federal-State

Protective Devices; Signs & Markings; Crossing Illumination & Surface Improvements

Centerline & Edgeline Markings; Establishing & Painting "NO PASSING" zones

Intersection widening, Channelization, & signalization; Skid-prone location correction

Guard rail end treatments Breakaway signs; Crash cushions; Tree Removal; Culvert headwall corrections

90-10

100

90-10

90-10

Pavement Marking~ signing, eliminate roadside obstacles, eliminate hazards @ railway

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The projects eligible for consideration for Funding under Section 209 are:

Loc. Ill Carpenter Road at Packard Road

Loc. l/2 Jackson Road at Wagner Road

·Loc. l/3 Ford Blvd. at Russell Road

Loc. l/5 Ford Blvd. at Forest Avenue

Loc. 1/6 Wagner Road at Liberty Road

Loc. 1/7 Holmes Road at Ford Blvd.

Loc. 1/8 Packard Road at Hewitt Road

Loc. II 13 Textile Road at McKean Road

Loc. 1120 Textile Road at Bridge Road

The project elibile for consideration for funding under Section 210 is:

Loc. illl Whittaker Road at StonY Creek Road.

RR-397- A Traffic Accident Analysis and Traffic Control ...€¦ · Holmes Road intersects Ford Boulevard to form a "T" intersec tion operating under traffic signal control. The right-of

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