traffic management safety points regarding safety while working on live road

This ppt tells about the safety points need to be taken care while working on live road safety

2. • Safety of Road users
• Safety of Construction workers
•Safety of Construction Equipment

3. Present Scenario
•01 Road casualty in every 8 Minutes.
•11 Accidents for every 1000 vehicles.
•34% of unnatural deaths are due to road
accidents.
•Mostly males, who are bread winners in
the family, die.

4. SPOTS OF ACCIDENTS:
Narrow Roads38515.26%
Turns 41416.38%
Slopes & climbs29611.71%
Straight Roads143156.65%

5. Typical Accidents in Construction Site
•Run-over
•Hit pedestrian
•Collision
•Hit against permanent
structures.
•Rolled from elevation.

6. Why Vehicle Accidents are severe ?
•Heavy Mass of the
vehicles.
•High velocity of the
vehicles.
•Unplanned / Unintended
passages.

7. Why construction site has more chances?

Temporary roads.
Adjacent working areas.
Adjacent pits.
Adjacent dump’s & fills.
Spill of boulders and
construction Materials
Improper Gradient
Insufficient illumination
Bad Vehicle Condition

8. LOCATION WHERE
THE TRACTOR
TROLLEY WAS
PARKED WITH
TRAFFIC CONES
Tractor trolley was
pushed About 20 mtrs.
And rammed on to the
working zone
Workin
g zone
Location where
Flagman / Safety
helper was placed to
caution the traffic was
also died in the
incident

9. Trailer which could
not slowed down
because of sloppy
road and lost the
controll and collieded
with tractor trailer
and rammed into
working zone
Car which was slowed
down because of
working zone and
escaped by hitting by
trailer
Tractor trailer which
was parked with 4 nos
traffic cones at about
20 mtrs before the
working zone
This portion of road is
having a gradient of
1.5 % between ROB
and Balaram bridge
(ie. Height
diffewrence of 14 mtrs
in the span of about
one kilometer
distance)
Working zone where
10 persons are
engaged on work
Flagman placed to
caution the traffic

11. Provision of suitable camber.
Optimal and Safer Speed design.
Calculations based on sight distance.
Design of divided carriageway.
Choosing suitable type of road
intersection.
Provision of adequate bus bays and
truck parking, Service stations etc. to
avoid vehicles parking on the main
carriageway.

12. Provision of Speed limits and advance
information
Provision of road signs and overhead
sign boards.
Provision of Road Markings (Retro
Reflective Paint marking).
Provision of Crash barriers and failing
fences Particularly high embankment
area.
Provision of Automatic traffic signal
control system.

14. Survey and levelling Work.
Tree Cutting.
Work in Borrow Pit.
Earthwork activities
GSB & WMM activities
Asphalt activities

15. Construction of Cross Drainages
Piling & Well foundation activities
Erection of Concrete / Steel Girders
Construction at Height / Depth

16. Erection & Commissioning of Plants.
Mining & Crushing operations.
Material Handling.
Hauling of Aggregates and Mix materials.

18. Mandatory Signs.
Cautionary Signs.
Informatory Signs

19. The Guiding Principles for
Safety in road construction zones
•To caution the road user clearly and well in advance
•To Provide safe and clearly marked lanes for guiding
road users
•To Provide safe and clearly marked work zones
and
•To Provide adequate measures that control driver
behavior through Construction Zones.

20. S
Lateral
Buffer Zone
Traffic Control
Zone
Terminal Transition Zone
Working
Zone
Longitudinal
Buffer Zone
Approach Transition Zone
Advance Warning Zone

21. Average
Approach
Speed (Km / h)
Length of
Advance
Warning Zone
(m)
Length of
Approach
Transition Zone
(m)
Length of
Working Zone
(m)
50 or less 100 50 )
51 - 80 100 - 300 50 - 100 )
81 - 100 300 - 500 100 - 200 ) Varies
Over 100 1000 200 - 300 )
Recommended Length Of Traffic Control Zones

23. Retro reflective signage of high intensity
Flashing becons
Reflective delinetors
Cateyes
Reflective jackets for workmen
Illumination of the work area
Deployment of recovery cranes
Continuous patrolling
Special care to be taken during rainy days, foggy and misty day
Traffic Management during Night

24. Road Construction Zone
•Traffic Control Zone
–Advance Warning Zone
–Transition Zone
–Working Zone

25. •Advance Warning Zone
•The “advance warning zone”, shall provide and
inform the road users about the,
–Presence of the hazard through suitable sign
with distance to the hazard;
–Changes affecting traffic arrangements (such as
a reduction in the number of lanes and/or in the
speed limit) within the traffic control zone.
–Extent and type of hazard
Road Construction Zone

26. •Approach Transition Zone
–Approach transition zone shall,
•Guide the traffic into the altered traffic flow
pattern around the working zone.
•Reduce the approach speed of the vehicles and
channelise them into the narrower and /or
restricted number of lanes or a temporary
carriageway.
Road Construction Zone

27. •Working Zone
–Working zone shall,
•Have adequate lateral and longitudinal buffer
zones.
•Continue to control speed of the plying vehicles
should
•Shall delineate to avoid vehicle intrusion in the
working area.
Road Construction Zone

28. Recommended Length of Traffic Control Zones
Average
Approach
Speed
(Km/h)
Length of
Advance
Warning
Zone
(m)
Length of
Approach
Transition
Zone
(m)
Length of
Working
Zone
(m)
50 or less100 50
Varies
51 – 80100 – 30050 – 100
81 – 100300 – 500100 – 200
Over 100 1000 200 – 300

29. TRAFFIC SIGNS
Three types of Road Signs.
•Mandatory / Regulatory
signs
–Impose Legal restrictions on
traffic.
–Give Notice to special
obligations, restrictions or
prohibitions.
–Mostly Circular in shape .
Mandatory /
Regulatory Signs

30. TRAFFIC SIGNS
Three types of Road Signs.
•Cautionary / Warning Signs
–To warn to user of the road
about the hazards and
condition existing.
–Triangle with red color border
with black font & white
background.
Cautionary /
Warning Signs

31. TRAFFIC SIGNS
Three types of Road
Signs.
•Informatory Signs
–Guide the road users.
–Rectangular in Shape
•Mandatory Signs
•Cautionary Signs
Informatory Signs

32. TRAFFIC SIGNALS

33. MANDATORY SIGNS

34. CAUTIONARY SIGNS

35. BARRICADES
Used to alert drivers on hazards created by construction
or maintenance activity around the passages.
•Shall be made of Wood, glass, fiber & steel.
•Red & White equal and alternate strips at 45
0
of down
ward slope towards the direction of diversion.
•Strips not less than 20 MM wide.
•For Stop / Halt strips to should be vertical.

36. BARRICADES TYPES
Type – I
Type – III
Type – II

37. SPEED BREAKER
•To alert drivers and control the speed.
•Small asphalt strips placed on pavements.
(Called rumble strips)
•Should not be installed in heavy traffic area.
•Shall be in placed before any entry to the
road.
•Warning about Speed breaker 40 Mtrs
before.
•Painted with white and black strips.

38. PARABOLIC CRASH BARRIERSPARABOLIC CRASH BARRIERS

39. TRAFFIC SIGNALLING POSTURES

40. Traffic lights

41. TRAFFIC CONES / BATS
To divert and control the traffic.
•Dimension as specified by th
e IRC.
•Heavy Base for stability.
•Alternate strips of red and
white.
•Height 500mm & 750mm

42. DRUMS
•Metal Drums of water capacity of
125 to 250 ltrs.
•Circumferentially painted with red
and white with reflectorised paint.
•Reflective strips of 10 to 20 CM
wide.
•Dimensions specified by IRC.
•Cheap but bulky

44. Types of diversion Plans
Construction in Rural Area
Construction in Urban Area
Construction of
Flyover/Grade Separator
Construction of
Bridges/Culverts
Construction of Underpasses
W
o
r
k

Z
o
n
e

S
a
f
e
t
y
,

P
o
l
i
c
y
&
S
t
a
n
d
a
r
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P
r
o
c
e
d
u
r
e
s

45. Salient Features adopted for Traffic Diversion Plan
Sl No. Features Purpose
1. Retro Reflective
Signage
For better visibility during Night shall be installed as per
IRC:67:2001 and IRC:SP:55:2001.
2. Illumination of
diversion in All
work Areas
Illumination of diversion in all work areas for added safety for
the Road Users.
3. Work Area
Barricading
Barricading work area before commencement of the
Construction.
4. Blinkers over
Barricades
Blinkers/ warning lights over the barricades will provide the
well defined path to the drivers in advance.
5. Traffic Marshals
equipped with
Baton
Traffic Marshals will be deployed at the Junction, entry /exit of
the Construction area for safe Maneuvering of Traffic round
the clock in the Urban areas.
6. New Jersey
Barricades
New Jersey Type Concrete Barriers will be placed at the point
of diversion .
7. Solar Chevron Flashing Solar chevrons will add better visibility to the existing
diversions

46. Traffic Marshals
Advance warning signs
New Jersey Type Crash barriers /Metal
Barricades
Solar powered chevron board
Delineators, Cones and bollards
Traffic Control devices

48. Typical diversion layout

49. Typical Signage Plan during
Construction
1

k
m
9
0
0

m
7
5
0

m
7
0
0

m
6
0
0

m
5
0
0

m
4
0
0

m
3
0
0

m
2
0
0

m
1
0
0

m
0

m
5
5
0

m
DIVERSION
AHEAD
500 m
DIVERSION
AHEAD
DIVERSION
AHEAD
300 m
DIVERSION
AHEAD
100 m
ROAD
CLOSED

50. DIVERSION

51. SOME CAUTION SIGNS ASPER THE INDIAN ROADCONGRESS
SPECIFICATIONS BEING FOLLOWED

52. NARROW ROAD AHEAD

53. NIGHT VIEW

54. NIGHT VIEW

55. DIVERSION SIGNS AT THE SIDES OF BARRICATION
CLAMPING SYSTEM AT TOP AND BOTTOM

57. CONESCONES
ELECTRONIC SIGNAL ELECTRONIC SIGNAL
LIGHT BATONSLIGHT BATONS
BARRICADE WITHBARRICADE WITH
REFLECTORSREFLECTORS

58. CONESCONES
BARRICADE WITH REFLECTORSBARRICADE WITH REFLECTORS
ELECTRONIC SIGNAL ELECTRONIC SIGNAL
LIGHT BATONSLIGHT BATONS

59. Any Questions ?