Attachment H.pdf

REFERENCES

WORK ZONE TRAFFIC

CONTROL ENGINEER

DATE

10-23-13 JCS GENERAL NOTE UPDATE

1-19-12 JCS GENERAL UPDATE

3-31-08 cs DRAWING NO. UPDATE

8-27-07 JCS DRAWING NO. UPDATE

It DATE

SOUTH CAROLINA OEPART~ENT OF TRANSPORTATION

DESIGN STANDARDS OFFICE

955 PARK STREET

ROOM 405

COLUMBIA. SC 29201

STANDARD DRAWING

MOBILE OP ERATIONS

IN TER STATE ROUTES

610-4 15-01

EFFECTIVE LETTING DATE

GENERAL NOTES

1. THESE TYPICAL TRAFFIC CONTROL SETUPS ILLUSTRATE THE TYPICAL TRAFFIC CONTROL SETUP AND INSTALLATION REQUIREMENTS FOR CONDUCTING WORK WITHIN A MOBILE OPERATION THAT MOVES CONTINUOUSLY AT SPEEDS OF 3 MPH OR GREATER WITHOUT ANY STOPS AT ALL TIMES ON AN INTERSTATE ROUTE. CONDUC T WORK OPERATIONS THAT CANNOT BE PERFORMED AT SPEEDS OF 3 MPH OR GREATER WITHOUT ANY STOPS UNDER STANDARD STATIONARY LANE CLOSURES.

2. WHERE VARIABLE DISTANCES ARE INDICATED IN THE ILLUSTRATION. ADJUST THE DISTANCE INTERVALS BETWEEN THE VEHICLES TO COMPENSATE FOR SIGHT DISTANCE OBSTRUCTIONS CREATED BY HILLS AND CURVES AND ANY OTHER CONDITIONS THAT MAY OBSTRUCT THE SIGNT DISTANCE BETWEEN THE VEHICLES.

ADJUS TMENTS TO THE DISTANCE INTERVALS BETWEEN THE VEHICLES ARE RESTRICTED TO THE RANGE OF VARIABLE DISTANCE INTERVALS INDICATED IN THE

. ILLUSTRATION.

3 . MAINTAIN TWO-WAY RADIO COMMUNICATION BETWEEN ALL VEHICLES IN THE VEHICLE TRAIN IN THIS MOBILE OPERATION.

4 . REFLECTORIZE ALL ORANGE ADVANCE WARNING SIGNS WITH AN APPROVED FLUORESCENT ORANGE COLORED PRISMATIC RETROREFLECTIVE SHEETING UNLESS

OTHERWISE DIRECTED BY THE DEPARTMENT.

5. PROVIDE, INSTALL AND MAINTAIN ALL ADVANCE WARNING ARROW PANELS AS ILLUSTRATED AND AS DIRECTED BY THIS TYPICAL TRAFFIC CONTROL STANDARD

DRAWING AND AS DIRECTED BY THE STANDARD SPECIFICATIONS AND THE ENGINEER.

6. PROVIDE. INSTALL AND MAl NT AIN ALL TRUCK MOUNTED ATTENUATORS AS ILLUSTRATED AND AS DIRECTED BY THIS TYPICAL TRAFFIC CONTROL STANDARD

DRAWING AND AS DIRECTED BY THE STANDARD SPECIFICATIONS AND THE ENGINEER.

7. PROVIDE, INS TALL AND MAINTAIN ALL TRUCK MOUNTED CHANGEABLE MESSAGE SIGNS AS ILLUSTRATED AND AS DIRECTED BY THIS TYPICAL TRAFFIC CONTROL STANDARD DRAWING AND AS DIRECTED BY THE STANDARD SPECIFICATIONS AND THE ENGINEER. SUBSTITUTION OF THE TRUCK MOUN TED CHANGEABLE MESSAGE SIGN WITH AN ADVANCE WARNING ARROW PANEL IS PROHIBITED UNLESS OTHERWISE DIRECTED BY THE ENGINEER.

8. SUPPLEMENT THE WORK VEHICLES AND THE SHADOW VEHICLES WITH AMBER COLORED AUXILIARY WARNING LIGHTS. THE AUXILIARY WARNING LIGHTS SHALL BE HIGH INTENSITY ROTATING, FLASHING, OSCILLATING OR STROBE LIGHTS. STANDARD VEHICLE HAZARD WARNING LIGHTS ARE ONLY PERMITTED AS A SUPPLEMENT

TO THE AUXILIARY WARNING LIGHTS.

INTERSTATE

RIGHT LANE

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CLOSURE

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INTERSTATE ROUTE

LEFT LANE CLOSURE

750'- 1500'

OPERATION NOTES

1. EQUIP THE WORK VEHICLE WITH AN ADVANCE WARNING ARROW PANEL DISPLAYING A FLASHING ARROW. THE WORK VEHICLE MAY BE

SUPPLEMENTED WITH A TRUCK MOUNTED ATTENUATOR.

2. THE FIRST SHADOW VEHICLE SHALL MAINTAIN A DISTANCE INTERVAL OF 250' TO 500' TO THE REAR OF THE WORK VEHICLE. EQUIP THE FIRST SHADOW VEHICLE WITH AN ADVANCE WARNING ARROW PANEL DISPLAYING A FLASH ING ARROW AND A TRUCK MOUNTED ATTENUATOR . THE FIRST SHADOW VEHICLE SHALL OPERATE IN THE SAME TRAVEL LANE AS THE WORK VEHICLE.

3 . THE SECOND SHADOW VEHICLE SHALL MAINTAIN A DISTANCE INTERVAL OF 750' TO 1500' TO THE REAR OF THE FIRST SHADOW VEHICLE. EQUIP THE SECOND SHADOW VEHICLE WITH AN ADVANCE WARNING ARROW PANEL DISPLAYING A FLASHING ARROW AND A TRUCK MOUNTED ATTENUATOR. THE SECOND SHADOW VEHICLE SHALL OPERATE IN THE SAME TRAVEL LANE AS THE WORK VEHICLE .

4. THE THIRD SHADOW VEHICLE SHALL MAINTAIN A DISTANCE INTERVAL OF 750' TO 1500' TO THE REAR OF THE SECOND SHADOW VEHICLE . EQUIP THE THIRD SHADOW VEHICLE WITH A TRUCK MOUNTED CHANGEABLE MESSAGE SIGN AND A TRUCK MOUNTED ATTENUATOR. THE TRUCK MOUNTED CHANGEABLE MESSAGE SIGN SHALL FLASH ALTERNATELY TO READ "RIGHT <LE FTl LANE ", " CLOSED AIHEAD" . THE THIRD SHADOW VEHICLE SHOULD OPERATE ON THE RIGHT SHOULDER WHERE PAVED SHOULDERS OR EARTH SHOULDERS WIDE ENOUGH TO ACCOMMODATE VEHICLES ARE PRESENT. HOWEVER, THE THIRD SHADOW VEHICLE MAY OPERATE IN THE SAME TRAVEL LANE AS THE WORK VEHICLE WHEN THE SHOULDERS ARE TOO NARROW TO ACCOMMODATE VEHICLES, THE SHOULDERS ARE STRUCTURALLY INADEQUATE OR CONCRETE BARRIER WALL, CABLE GUARDRAIL OR CURB S. GUTTER IS PRESENT. THE TRUCK MOUNTED CHANGEABLE MESSAGE SIGN SHALL DISPLAY A FLASHING ARROW WHEN THE THIRD SHADOW VEHICLE OPERATES IN A TRAVEL LANE. THE FLASHING ARROW DISPLAY ON THE TRUCK MOUNTED CHANGEABLE MESSAGE SIGN IS ONLY PERMITTED WHEN THE THIRD SHADOW VEHICLE OPERATES IN A TRAVEL LANE. THE FLASHI NG ARROW DISPLAY ON THE TRUCK MOUNTED CHANGEABLE MESSAGE

SIGN IS PROHIBITED WHEN THE THIRD SHADOW VEHICLE OPERATES ON A SHOULDER.

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* * * * LEFT LANE CLOSURE WORK VEHICLE

THIS DRAWING IS NOT TO SCALE

1. THE FLASHING ARROW SHALL POIN T TO THE RIGHT .

LEFT LANE CLOSURE FIRST SHADOW VEHICLE

1. THE FLASHING ARROW SHALL POINT TO THE RIGHT.

LEFT LANE CLOSURE SECOND SHADOW VEHICLE

1. THE FLASHING ARROW SHALL POIN T TO THE RIGHT.

LEFT LANE CLOSURE THIRD SHADOW VEHICLE

1. THE TRUCK MOUNTED CHANGEABLE MESSAGE SIGN SHALL FLASH ALT ERNAT ELY TO READ "LEFT LANE", "CLOSED AHEAD".

2. PLACE THE VEHICLE ON THE RIGHT SHOULDER DURING LEFT LANE CLOSURES WHEN SUFFICIENT SHOULDER SPACE IS AVAILABLE AND THE RIGHT SHOULDER IS STRUCTURALLY SOUND.

WHEN SUFFICIENT RIGHT SHOULDER SPACE IS UNAVAILABLE DUE TO CONDITIONS SUCH AS BUT NOT LIMITED TO THE PRESE NCE OF CONCRETE BARRIER WAL L OR CURB & GUTTER OR THE RIGHT SHOULDER AREA IS STRUCTURALLY INADEQUATE, THE THIRD SHADOW VEHICLE MAY OPERATE IN THE SAME TRAVE L LANE AS THE WORK VEHICLE . OPERATION OF THE THIRD SHADOW VEHICLE IN A TRAVEL LANE SHALL REQUIRE THE ENGINEER'S APPROVAL PRIOR TO BEGINNING THE WORK.