102-GEN-NOTES RQN 24_1160.pdf

FILE:

Michigan Department of Transportation

MAY 2022

TRAFFIC TYPICALS

NOTE SHEET

DATE:

SHEET:

NOT TO SCALE

102-GEN-NOTES.dgn

MAINTAINING TRAFFIC TYPICAL

102-GEN-NOTES

NO:

GENERAL NOTES

BUFFER AREAS.

DO NOT STORE EQUIPMENT, MATERIALS OR PERFORM WORK IN ESTABLISHEDG4:

BY MDOT WILL BE ALLOWED.

APPLICABLE SPECIAL PROVISIONS. ONLY DESIGNS AND MATERIALS APPROVED

STANDARD SPECIFICATIONS FOR CONSTRUCTION, THE STANDARD PLANS AND

MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES, THE CURRENT EDITION OF THE

HARDWARE (MASH) TL-3 AS WELL AS THE CURRENT EDITION OF THE MICHIGAN

REPORT 350 (NCHRP 350) TEST LEVEL 3, OR MANUAL FOR ASSESSING SAFETY

LIGHTING MUST MEET NATIONAL COOPERATIVE HIGHWAY RESEARCH PROGRAM

ALL TEMPORARY SIGNS, TYPE III BARRICADES, THEIR SUPPORT SYSTEMS ANDG3:

ARE ADEQUATELY DELINEATED BY OTHER TRAFFIC CONTROL DEVICES.

WILL BE MADE FOR TRAFFIC PATTERNS FOR WORK LESS THAN THREE DAYS THAT

BE REMOVED BEFORE ANY CHANGE IS MADE IN THE TRAFFIC PATTERN. EXCEPTION

CHANGES IN TRAFFIC PATTERNS OR PROPOSED TEMPORARY TRAFFIC MARKINGS SHALL

ALL EXISTING PAVEMENT MARKINGS WHICH ARE IN CONFLICT WITH EITHER PROPOSED G5:

S9:

OF THE STOP SIGN OR IF SIGNALS ARE BEING USED TO CONTROL TRAFFIC.

STOP AHEAD SIGNS ARE NOT REQUIRED IF THERE IS ADEQUATE VISIBILITY

STOP SIGNS NOT REQUIRED IF SIGNALS ARE ON 4-WAY FLASHING RED.

S8:

PLACE THEM "D" DISTANCE APART.

WHEN SPEED LIMIT SIGNS CANNOT BE PLACED SIDE BY SIDE AS SHOWN,

S7:

THE WORK ZONE.

PLACE ADDITIONAL R8-3 SIGNS AT A MAXIMUM 500' SPACING THROUGHOUT

S6:

STANDARDS.

FABRICATE SPECIAL SIGNS IN ACCORDANCE WITH CURRENT SIGNING DESIGN

S4:

THE W20-5 SIGNS.

WHEN TRAFFIC VOLUMES ARE SIGNIFICANT ENOUGH TO CREATE BACKUPS BEYOND

ADDITIONAL SIGNING AND/OR ELONGATED SIGNING SEQUENCES SHOULD BE USED

S2:

AND CONSOLIDATE THE SEQUENCE AS APPROPRIATE.

OR LONGER. TO APPLY THIS TYPICAL WITHOUT R5-18b SIGNS, REMOVE THE SIGNS

15 DAYS OR LONGER OR NON-FREEWAY PROJECTS WITH A DURATION OF 90 DAYS

R5-18b SIGNS ARE ONLY REQUIRED ON FREEWAY PROJECTS WITH A DURATION OF

S3:

OMIT THIS SIGN IN SUBSEQUENT SEQUENCES IN THE SAME WORK ZONE.

R5-18c IS ONLY REQUIRED IN THE INITIAL SIGNING SEQUENCE IN THE WORK ZONE.

SIGN NOTES

S5:

ACCORDINGLY.

SPEED LIMIT ARE POSTED, OMIT ALL W3-5b AND R2-1 SIGNS AND REDUCE SPACING

OF THE WORK AREA AS INDICATED. IF PERMANENT SIGNS DISPLAYING THE CORRECT

SPEED LIMIT SIGNS RETURNING TRAFFIC TO ITS NORMAL SPEED BEYOND THE LIMITS

WHEN REDUCED SPEED LIMITS ARE UTILIZED IN THE WORK AREA, PLACE ADDITIONAL

ROADWAY SUCH THAT NO SPEED LIMIT SIGNS ARE MORE THAN 2 MILES APART.

IS IN EFFECT. PLACE ADDITIONAL SPEED LIMIT SIGNS AT INTERVALS ALONG THE

ENTRANCE RAMP THAT COMES ONTO THE FREEWAY WHERE THE REDUCED SPEED

EACH MAJOR CROSSROAD THAT INTERSECTS THE WORK ZONE, OR AFTER EACH

PLACE ADDITIONAL SPEED LIMIT SIGNS REFLECTING THE WORK ZONE SPEED AFTER

S1:

SAFETY AND MOBILITY MANUAL, SECTIONS 6.01.09 AND 6.01.10.

CONDITIONS, COVERED, OR REMOVED. FOR GUIDANCE SEE THE WORK ZONE

ALL NON-APPLICABLE SIGNING WITHIN THE CIA MUST BE MODIFIED TO FIT

TCD8:

REVERSE CURVE SIGN, AND THE SECOND REVERSE CURVE SIGN CAN BE OMITTED.

REVERSE CURVE SIGN (W24-1) CAN BE USED INSTEAD OF THE FIRST

WHERE THE SHIFTED SECTION IS SHORTER THAN 600 FEET, A DOUBLE

TYPE III BARRICADES MUST BE LIGHTED FOR OVERNIGHT CLOSURES.TCD3:

"ROAD CLOSED" EXTENDING COMPLETELY ACROSS THE HAUL ROAD.

WHEN THE HAUL ROAD IS NOT IN USE, PLACE LIGHTED TYPE III BARRICADES WITHTCD4:

TEMPORARY TRAFFIC CONTROL DEVICE NOTES

TCD7:

OFF ROAD FROM EDGE OF PAVEMENT TO EDGE OF PAVEMENT.

ADDITIONAL TYPE III BARRICADES MAY BE REQUIRED TO COMPLETELY CLOSE

TCD9:

ARE NOT TO EXCEED 50 FEET AT NIGHT.

45 MPH OR GREATER. THE SPACING FOR 42 INCH CHANNELIZING DEVICE TANGENTS

EXCEED 100 FEET ON ROADWAYS WITH A POSTED WORK ZONE SPEED LIMIT OF

WITH A POSTED WORK ZONE SPEED LIMIT LESS THAN 45 MPH AND SHOULD NOT

SHOULD NOT EXCEED TWICE THE WORK ZONE SPEED LIMIT IN MPH FOR ROADWAYS

THE MAXIMUM DISTANCE IN FEET BETWEEN CHANNELIZING DEVICES IN A TANGENTTCD2:

TAPERS ARE NOT TO EXCEED 25 FEET AT NIGHT.

LIMIT OF 45 MPH OR GREATER. THE SPACING FOR 42 INCH CHANNELIZING DEVICE

SHOULD NOT EXCEED 50 FEET ON ROADWAYS WITH A POSTED WORK ZONE SPEED

ROADWAYS WITH A POSTED WORK ZONE SPEED LIMIT LESS THAN 45 MPH AND

SHOULD NOT EXCEED 1.0 TIMES THE WORK ZONE SPEED LIMIT IN MPH FOR

THE MAXIMUM DISTANCE IN FEET BETWEEN CHANNELIZING DEVICES IN A TAPERTCD1:

AT A CONSISTENT DISTANCE, BETWEEN 10' AND 20' APART.

THREE RUMBLE STRIPS. PLACE THE RUMBLE STRIPS IN THE ARRAY

RECOMMENDATIONS. AN ARRAY OF RUMBLE STRIPS CONTAINS

SHOWN, AND IN ACCORDANCE WITH THE RUMBLE STRIP MANUFACTURER'S

IF NOT SPECIFIED IN THE CONTRACT, PLACE RUMBLE STRIPS AS

RUMBLE STRIPS ARE TO BE PLACED AS SPECIFIED IN THE CONTRACT.

RAMP NOTES

DIVERGE IN A FREE MANNER

CHANELIZING DEVICES MUST BE POSITIONED TO ENABLE RAMP TRAFFIC TO

WHEN CONDITIONS ALLOW, E5-1 SIGNS MUST BE REMOVED OR COVERED ANDRMP1:

WORK SHOULD BE EXPEDITED TO AVOID THE STOP AND/OR YIELD CONDITIONS.

THE RAMP TO COMPLETE WORK TO ALLOW AN ADEQUATE MERGE DISTANCE.

IN PLACE OF W3-2 SIGNS. CONSIDERATION SHOULD BE GIVEN TO CLOSING

R1-2 SIGNS. WHEN R-1 SIGNS ARE USED, W3-1 SIGNS MUST BE USED

WHEN CONDITIONS WARRANT, R1-1 SIGNS MAY BE USED IN PLACE OF

STOP AND YIELD CONDITIONS SHOULD BE AVOIDED WHENEVER PRACTICAL.RMP2:

G2:

THE ENGINEER.

GEN-KEY ARE APPROXIMATE AND MAY NEED ADJUSTING AS DIRECTED BY

DISTANCE BETWEEN SIGNS, "D", THE VALUES FOR WHICH ARE SHOWN IN TYPICAL

BOARD IN THE CLOSED LANE AS CLOSE TO THE BEGINNING OF TAPER AS POSSIBLE.

SECTIONS, IF ARROW BOARD CANNOT BE PLACED BEHIND CURB, PLACE ARROW

MOTORISTS WHEN PHYSICAL LIMITATIONS RESTRICT PLACEMENT. IN CURBED

PRACTICAL, BUT NOT IN A MANNER THAT WILL OBSCURE OR CONFUSE APPROACHING

PLACE LIGHTED ARROW PANELS AS CLOSE TO THE BEGINNING OF TAPERS AS TCD6:

S10:

A SPEED REDUCTION IN THIS DIRECTION.

PLACE REDUCED SPEED ZONE AHEAD SIGN (W3-5b) HERE WHEN USING

TCD10:

SIDES OF THE ROAD 1000 FEET FROM EACH OTHER.

CORRECT PCMS MESSAGING. STAGGER PCMS THAT ARE ON OPPOSING

CHANGEABLE MESSAGE SIGN GUIDELINES FOR RECCOMENDED AND

SEE THE WORK ZONE SAFETY AND MOBILITY MANUAL, PORTABLE

AN ANGLE OF 45 DEGREES IN THE DIRECTION VEHICULAR TRAFFIC IS TO PASS.

HAVE ALTERNATING DIAGONAL ORANGE AND WHITE STRIPES SLOPING DOWNWARD AT

AND WHITE RETROREFLECTIVE SHEETING. THE RETROREFLECTIVE SHEETING MUST

A MINIMUM OF 12 INCHES IN WIDTH AND 36 INCHES IN HEIGHT AND HAVE ORANGE

WHEN USED WITH A TEMPORARY SIGNAL SYSTEM. THE OBJECT MARKERS MUST BE

IN THE STANDARD PLAN FOR TEMPORARY CONCRETE BARRIER (R-53, AND R-126)

USE OBJECT MARKER SIGNS IN LIEU OF THE TYPE B HIGH INTENSITY LIGHT SHOWNTCD5:

ROLL AHEAD DISTANCE

B = LENGTH OF LONGITUDINAL BUFFER

L = MINIMUM LENGTH OF TAPER

D = DISTANCE BETWEEN TRAFFIC CONTROL DEVICES

SEE GEN-SPACING-CHARTS FOR COMMON VALUES INCLUDING:G1:

TRAFFIC REGULATOR NOTES

TR1:

BY THE ROADWAY ADT, GEOMETRICS, AND AS DIRECTED BY THE ENGINEER.

THE MAXIMUM DISTANCE BETWEEN THE TRAFFIC REGULATORS IS DETERMINED

AND THE VIDEO "HOW TO SAFELY REGULATE TRAFFIC IN MICHIGAN".

THE CURRENT VERSIONS OF THE TRAFFIC REGULATOR'S INSTRUCTION MANUAL

SPECIFICATIONS, THE STANDARD PLANS AND APPLICABLE SPECIAL PROVISIONS,

TRAFFIC REGULATORS MUST FOLLOW ALL THE REQUIREMENTS IN THE STANDARD

TR2:

THE HOURS OF DARKNESS.

REGULATOR'S STATIONS WHEN TRAFFIC REGULATING IS ALLOWED DURING

PROVIDE APPROPRIATE BALLOON LIGHTING TO SUFFICIENTLY ILLUMINATE TRAFFIC

S11:

LENGTH OF SHIFT AND AS PER THE ENGINEER.

SHIFTS MORE THAN 12FT, PLACE THREE OR MORE W1-6(R)(L) SIGNS DEPENDING UPON

SHIFTS 5FT TO 12FT, PLACE TWO W1-6(R)(L)

SHIFTS 4FT OR LESS, PLACE ONE W1-6(R)(L)

THE NUMBER OF W1-6 SHIFT SIGNS TO PLACE FOR A SHIFT IS AS FOLLOWS:

S12:

IN THIS DIRECTION

PLACE R2-1 SIGNS AS DETAILED IN NOTE S5 WHEN THERE IS A SPEED REDUCTION

THE FOLLOWING NOTES APPLY IF CALLED FOR ON THE TRAFFIC TYPICAL

THE REQUIREMENTS OF THE MMUTCD

PROVIDE EITHER A STOP/SLOW AFAD OR A RED/YELLOW LENS AFAD, MEETINGTR3:

FILE:

Michigan Department of Transportation

MAY 2022

TRAFFIC TYPICALS

NOTE SHEET

DATE:

SHEET:

NOT TO SCALE

102-GEN-NOTES.dgn

MAINTAINING TRAFFIC TYPICAL

102-GEN-NOTES

NO:

SIGNAL NOTES

TRUCK IS LOCATED OVER ACTIVE TRAVEL LANES.

THE CONTRACTOR MUST HAVE A DESIGNATED SPOTTER IF THE AERIAL BUCKETSIG4:

INTERSECTION WHEN TRAFFIC IS PLACED IN A 4 WAY STOP.

COMPROMIZED. USE TRAFFIC REGULATORS TO CONTROL TRAFFIC THROUGH THE

THE INTERSECTION IN A 4 WAY STOP IF THE 14 FOOT VERTICAL CLEARANCE IS

CLEARANCE. THE CONTRACTOR MUST UTILIZE AN ALTERNATE SET UP, OR PLACE

THE LOWEST POINT OF THE BUCKET MAY NOT TRAVEL BELOW 14 FOOT VERTICALSIG5:

TRUCK MAY BE MOVED TO FACILITATE WORK.

DELINEATE THE TRUCK WITH CHANNELIZING DEVICES. THE POSITION OF THESIG6:

42 INCH CHANNELIZING DEVICES FOR NIGHTTIME WORK.

DELINEATE THE WORK ZONE AREA WITH 28 INCH CONES FOR DAYTIME WORK, ORSIG3:

SIGNAL IS IN OPERATION.SIG2:

EXISTING SIGNAL MUST BE EITHER 4-WAY FLASHING RED, BAGGED, OR TURNED OFF.SIG1:

MAINTENANCE AND SURVEYING NOTES

ACTIVATED AMBER BEACON.

WORK AND SHADOW VEHICLES SHALL BE APPROPRIATELY EQUIPPED WITH AN MS4:

SIGHT DISTANCE IN ADVANCE OF VERTICAL OR HORIZONTAL CURVES.

SLOW DOWN AND TRAVEL AT A FARTHER DISTANCE TO PROVIDE ADEQUATE

AREA AND PROCEEED AT THE SAME SPEED. THE SHADOW VEHICLE SHOULD

VEHICLES SHOULD MAINTAIN THE RECOMENDED DISTANCE FROM THE WORK

WHENEVER STOPPING SIGHT DISTANCE EXISTS TO THE REAR, THE SHADOW MS1:

TABLES.

SHOULD BE PARKED ACCORDING TO THE ROLL AHEAD DISTANCE

SEPARATE THE WORK SPACE FROM TRAFFIC. IF USED, THE VEHICLES

WORK OR SHADOW VEHICLES WITH OR WITHOUT A TMA MAY BE USED TO MS3:

TO) IS THE LAYOUT OF CONCRETE PATCHES.

SPACING MUST BE USED. AN EXAMPLE OF AN OPERATION (BUT NOT LIMITED

CHANNELIZING DEVICES TO DELINEATE OPEN OR CLOSED LANES AT 50 FT

A MOBILE OPERATION IS OCCURRING DURING THE NIGHTTIME HOURS,

WHEN WORKERS ARE OUTSIDE THEIR VEHICLES IN AN EXISTING LANE WHILEMS5:

TYPE OF WORK TAKING PLACE AS PER THE ENGINEER.

W21-6 AND W20-1 SIGNS MAY BE SUBSTITUTED AS DETERMINED BY THE MS6:

"END ROAD WORK" SIGN.

AND THE "END WORK CONVOY" SIGN, OR BETWEEN THE "WORK ZONE BEGINS" AND

WITH AN ACTIVATED BEACON, BETWEEN THE "BEGIN WORK CONVOY" SIGN

WORKERS OUTSIDE OF VEHICLES SHOULD WORK WITHIN 150' OF WORK VEHICLES MS2:

THE FOLLOWING NOTES APPLY IF CALLED FOR ON THE TRAFFIC TYPICAL