1 Office of the Engineer-in-Chief (R&B), Errum Manzil, A.P., Hyderabad. Circular Memo No.2/DCE (R)/ EE(RS&PMS)/ DEE1/ AEE1 Dated: 11.07.2005. Sub:- R&B Dept. - Road Safety Interventions - Certain guide lines issued - Recommendations of the committee on proposed road safety interventions - Regarding Ref :- 1. G. O. Ms. No. 80 of T,R&B (R.I) Dept. dt.25-4-2005 2. T. O. Memo No. 2/ DCE(R)/ EE(RS&PMS)/ DEE I/ AEE I Dt:18-05-2005. *** The Government vide reference 1 st cited, have issued certain guide lines on road safety along with certain road safety interventions to be taken up. In this regard, a committee of 10 Senior Engineers, Traffic Experts, Professors was constituted for finalization of detailed specifications, drawings, to be adopted for the proposed road safety interventions. The Committee has met in series of meetings and submitted very valuable recommendations. In this regard the following guidelines have been issued based on Committee’s recommendations. All the Superintending Engineers are requested to adopt the guidelines in taking up of Road Safety Interventions mentioned vide reference 1st cited. 1.Cement Concrete dividers: Central road dividers of cement concrete (CC M15 grade) are to be provided on roads to avoid head on collusion. • The central median/divider shall be provided in stretches where clear carriageway of 14m & above is available. And in urban limits, dividers shall be provided where clear carriageway available is 11m & above. • The height recommended is 0.40m in stead of 0.75m for urban roads (with bottom width of 0.45m & top width of 0.25m) and for rural roads the height recommended is 0.30m (with bottom width of 0.33m & top width of 0.23m), as shown in the drawings attached.
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1
Office of the Engineer-in-Chief (R&B), Errum Manzil, A.P., Hyderabad.
Markers using M.S.angle of size 55X55X6mm and 120cm high above ground level
painted with two coats of black & white stripes of 15cm wide with first quality
synthetic enamel paint over one coat of appropriate primer of approved brand, colour,
with 30cm x 90cm striped reflectorized panels fixed at top over 4mm FRP sheet with
standard supports consisting of alternately (black and yellow) stripes sloping
downward at an angle of 45° towards the side of the obstruction on which the traffic is
to pass and buried into the ground in a trench of size 50cm x 50cm and 60cm depth
filled with CC 1:2:4 as directed by Engineer-in-Charge and conforming to IRC 79-
1981 & MORT&H specification no.805 and approved drawings etc., complete for
finished item of work
.Codes: IRC 79-1981 & MORT&H specification no.805
4 mm FRP
55X55X6 MM
RD 6RIGHTLEFTRD 5
45°
300
1200
100
300
900
200
600
RED REFLECTORS100-150 MM DIA
GL GLGLGLGLGL
Black stripes
Yellow stripes
Black stripes
Yellow stripes
of the road)both on left and right side
(Same design should be used
55X55X6 MM 55X55X6 MM
STOP LINE
10 m
30 TO 100M AS PER IRC: 39-1986
CAUTIONARY SIGN
AS PER IRC 67-1997
CENTRE LINE
START OF NO. PASSINGZONE 200 M FROM THE CROSSING
RESTRICTING OVERTAKING
BY TRAFFIC TOWARDS THE TRAFFIC
RUMBLE STRIPSAS PER IRC: 39-1986
GATE
STOP LINE
2 M FOR LIFTING BARRIERS OR
1 M PLUS WIDTH OF GATE FORSINGLE SWINGING TYPE GATE OR1 M PLUS HALF WIDTH OF GATE
FOR DOUBLE SWINGING TYPE GATE
NOTE: SIMILAR MARKING TO BE PROVIDED ON THE OTHER SIDE OF THE CROSSING
100 mm
ANNEXURE – III
Specification for Rumble Strips :
Construction of Rumble Strips with hot premixed bituminous material as per
approved drawing and technical specifications with raised section of 25mm high,
300mm wide, place about one metre centre to centre, with a series of 7nos strips at
one location, including marking strips in the specified location, clearing of all dust, loose
particles, applying tack coat, cost of form work, all T&P charges, compacting, rounding
the edges and finishing the surface to the required shape, etc. complete as directed by
Engineer-in-Charge, for finished item of work and as per IRC 39 – 1986 & 99
Codes : IRC 39 & 99
ANNEXURE - IV
Specification for Studs:
Providing and fixing raised pavement markers (reflective road studs)
made of Polycarbonate moulded body, HIPS (Hi-impact polystyrene), ABS &
ASA (Acrylic Strene Acrylonitrite) type etc. and reflective panels with
microprismatic lens capable of light entering the lens face and conforming to
ASTM D 4280 , ASTM D 788 , ASTM E 809 (CLI – coefficient of luminous
intensity), & BS 873 part 4 : 1973 and complying to guidelines issued by
MORTH circular no. RW/NH/33023/10-97- DO III dt.11-6-1997. The height,
width and length shall not exceed 20mm, 130mm and 105mm and with
minimum reflective area of 13 sqcm.on each side and the slope to the base
shall be 35° +/- 5°. Fixing will be without nails but by using twin polymer shanks
using bituminous adhesive on bituminous roads or without polymer shanks with
epoxy resin based adhesive on CC roads as per manufacturer’s
recommendation including site clearance etc. and complete as directed by the
Engineer in charge.
Standards: ASTM D 4280 , ASTM D 788 , ASTM E 809 (CLI – coefficient of
luminous intensity), & BS 873 part 4 : 1973
Circulars: MORTH circular no. RW/NH/33023/10-97- DO III dt.11-6-1997.
1300 MM
20MM
105 MM
Reflective Area
ANNEXURE – V
Specification for Centreline marking:
Providing centreline marking of 300cm length and 10cm width with a gap of 450cm
with thermoplastic paints conforming to IS : 164-1981 (1st revision reaffirmed in
1986) and clause 803 of MOST specifications for Road & Bridge works and also
conforming to IRC 35-1997.
Codes: IS : 164-1981 (1st revision reaffirmed in 1986)
MOST specification clause 803 IRC 35-1997
CENTRE LINE MARK ING
2-LANE ROAD
300
10 450
ALL D IMENS IONS ARE IN CM
s tuds w ith 7 .5 m e te r spacing
SPEC IF ICAT IONS FOR CENTRAL LINE MARK ING :
P rov id ing cen tre line m ark ing o f 300cm leng th and 10cm w idth w ith a gap o f 450cmw ith the rm op las tic pa in ts con form ing to IS :164 -1981 (1s t rev is ion reaffirmed in 1986)and c lause 803 of MOST spec ifica tions fo r R oad & B ride w orks and also conform ing to IRC 35-1997.C odes : IS :164-1998 (1s t rev is ion reaffirmed in 1986)
MOST spec ific a tion c lause 803 & IRC 35-1997.
W id th 10 cmTh ickness 2.5 mm
ANNEXURE – VI (i)
600
750
2100 to 5000
850
DETAILS OF DIAGONAL AND CHEVRON MARKING
850
45°
45°
150100
750
150
850 2100 TO 5000 850
30 m600
850
2100 to 5000850
600
750
150
150
100
30 M 45°
45°
30 m
Note: All dimensions are in mm
ANNEXURE – VI (ii)
45.0 m 60
.0 m
FLA
RING NOT MORE
THAN I IN
20
45.0 m
45.0 m
DOUBLE
CENTRE LINE
DIAGNOLS
MARKING ON TRANSITION FROM 2-LANE UNDIVIDED TO 4-LANE DIVIDED C
ARRIAGEWAY (NO SHIFT IN
CENTRE LINE)
Note: A
ll dim
ensions are in meters
ANNEXURE – VI (iii)
1 foot
Desirable 100 feet
Minimum 15 feet
DIVIDER
0.5 m
Min 2.5 m
0.5 m
Not more than 1.25 mNot less than 0.5 m,
Stop line
Footpath
Pedestrian Crossing at an Unsignlized Intersection
ANNEXURE - VII
Specification for Zebra Markings:
Providing Zebra pattern stripes marking for pedestrian crossing with equally
spaced white stripes 500 mm wide and 500 mm gap and length of 2 m to 4 m with
thermoplastic paints conforming to IS: 164-1981 (I st revision, reaffirmed in 1986)
and clause 803 of MOST specification for Road & Bridge works and also
conforming to IRC 103-1988 & IRC 35-1997.
Codes: IS: 164-1981 (I st revision, Reaffirmed in 1986) MOST specification Clause
803.
IRC 103-1988 & IRC 35-1997.
ANNEXURE – VIII
Specification for Cautionary/Warning
Signs:
Providing and fixing
Cautionary/Warning sign boards size 900
mm equilateral triangle made out of Retro
reflective sheeting of Type – III of ASTM
D4956-01 for full background of White
colour and letters/logos done by screen
printing in Black colour, boarders by screen
printing in Red colour as per IRC: 67-2001
and fixed over 4 mm thick FRP sheet and
painted back side with grey colour and fixed
over back support frame of MS angle
25x25x3 mm all round and mounted on a
MS angle post of size 75x75x6 mm with
clear height of not less than 2.1 m from the
ground level the bottom of the board. The
signpost should be painted with one coat of
red oxide paint and 2 coats of synthetic
enamel paint of every 30 cm with Black &
White colour. The signpost shall be firmly
fixed with MS base angle 35x35x4 mm in to
the ground by 1:2:4 Concrete foundation of
size 450x450x600 mm.
Standards:
Retro Reflective Sheeting: Type-III of ASTM
D4956 – 01.
Sign Design and fabrication: As per IRC:
67-2001.
Circulrs: Most No. RW/NH-33023/31/88-
DO-III dt: 4-11-1995.
600
35x35x4mm
GL
450
900 mm
White Retro Reflective Sheeting (Type - III)
Black sreen printing ink
Red sreen printing ink
GL
900 mm
900 mm
Front View
Rear view
35x35x4 mm MS Angle
25x25x3 mmMS Angle
MS angle75x75x6 mm
2100 m
m
Cautionary/Warnig Signs
MS base Angle
ANNEXURE – VIII
Specification for Mandatory/Regulatory
Signs:
Providing and fixing
Mandatory/Regulatory sign boards size
600MM/900 mm circle made out of Retro
reflective sheeting of Type – III of ASTM
D4956-01 for full background of White
colour and letters/logos done by screen
printing in in black colour, boarders by
screen printing in Red colour as per IRC:
67-2001 and fixed over 4 mm thick FRP
sheet and painted back side with grey
colour and fixed over back support frame of
MS angle 25x25x3 mm all round and
mounted on a MS angle post of size
75x75x6 mm with clear height of not less
than 2.1 m from the ground level the bottom
of the board. The signpost should be
painted with one coat of red oxide paint and
2 coats of synthetic enamel paint of every
30 cm with Black & White colour. The
signpost shall be firmly fixed with MS base
angle 35x35x4 mm in to the ground by 1:2:4
Concrete foundation of size 450x450x600
mm.
Standards:
Retro Reflective Sheeting: Type-III of ASTM
D4956 – 01.
Sign Design and fabrication: As per IRC:
67-2001.
GL
White Retro Reflective Sheeting (Type - III)
Black sreen printing ink
Red sreen printing ink
GL
Fron View
Rear view
35x35x4 mm MS Angle
25x25x3 mmMS Angle
MS angle75x75x6mm
2100 m
m
MANDATORY/REGULATORY SIGNS
900 mm
12 mm hole
600
35x35x4mm
GL
450
GL
MS base Angle
ANNEXURE – VIII
Specification for Facility Informatory
Signs:
Providing and fixing
Cautionary/Warning sign boards size
600X800 mm made out of Retro reflective
sheeting of Type – III of ASTM D4956-01
for full background of Blue/White colour with
screen printing of symbols in Black colour
as per IRC: 67-2001 and fixed over 4 mm
thick FRP sheet and painted back side with
grey colour and fixed over back support
frame of MS angle 25x25x3 mm all round
and mounted on a MS angle post of size
75x75x6 mm with clear height of not less
than 2.1 m from the ground level the bottom
of the board. The signpost should be
painted with one coat of red oxide paint and
2 coats of synthetic enamel paint of every
30 cm with Black & White colour. The
signpost shall be firmly fixed with MS base
angle 35x35x4 mm in to the ground by 1:2:4
Concrete foundation of size 450x450x600
mm.
Standards:
Retro Reflective Sheeting: Type-III of ASTM
D4956 – 01.
Sign Design and fabrication: As per IRC:
67-2001.
600
GL
Blue Retro Reflective Sheeting (Type - III)
Black sreen printing ink
GL
Fron View
Rear view
35x35x4 mm MS Angle
25x25x3 mmMS Angle
MS angle75x75x56mm
2100 m
m
FACILITY INFORMATORY SIGNS
12 mm hole
White Retro Reflective Sheeting (Type - III)
600
35x35x4mm
GL
450 mm
GL
Fron View
MS base Angle
ANNEXURE – IX
Proforma – 1
ASSESSMENT SURVEY FOR ROAD SAFETY INTERVENTIONS (RSI)
Abbreviations to be used
Cement Concrete Divider - CCD Mandatory Sings – MS (Type of sign)
Rumble Strips - RS Cautionary Signs – CS(Type of sign)
Studs - SD Informatory Signs-IS (Type of sign)
Marking - M(Specify type of marking)
Narrow Culvert - NC
STRIP
PLAN Km EXACT
CHAINAGE /
LOCATION
TYPE OF ROAD SAFETY
INTERVENTIONS
From To LEFT
SIDE
RIGHT
SIDE
ON ROAD /
ACROSS
ROAD
DETAILS OF
ROAD SAFETY
INTERVENTIONS
PROPOSED /
REMARKS
Note: The above survey should be conducted for every road, section wise.
AEE DEE EE
Example Sheet
ANNEXURE – IX
Proforma – 1
ASSESSMENT SURVEY FOR ROAD SAFETY INTERVENTIONS (RSI)
Abbreviations to be used
Cement Concrete Divider - CCD Mandatory Sings – MS (Type of sign)
Rumble Strips - RS Cautionary Signs – CS(Type of sign)
Studs - SD Informatory Signs-IS (Type of sign)
Marking - M(Specify type of marking)
Narrow Culvert - NC
STRIP
PLAN Km EXACT
CHAINAGE /
LOCATION
TYPE OF ROAD SAFETY
INTERVENTIONS
From To LEFT
SIDE
RIGHT
SIDE
ON
ROAD/
ACROSS
ROAD
DETAILS OF
ROAD SAFETY
INTERVENTIONS
PROPOSED /
REMARKS
Example:
6/0 to 7/0
6/355 (Outskirts of
Venkatapuram)
CS -- -- Left hand curve
Studs from 6/0 to 7/0
@ 7.5mt C/C DC-
MDR
6/843 -- CS -- Right hand cruve
6/900 to 6/990 CCD Divider in town
limits of Anakapally
6/995 NC Widening to be taken
up 2V of 1 mt.dia
7/0 to 8/0 7/280 MS -- -- Speed limits 40
Kmph
7/390 -- MS -- No over taking
Note: The above information filled in the format is just to understand the columns to be