Retro Report Road Signage

1. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER –
BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
2 | P a g e
Retro Sign GRX Retro reflectometer Delta Make, Denmark
The Retro Sign Retro reflectometer is a portable field instrument intended for measuring the
retroreflection properties of road signs in car headlight illumination. The value RA
(coefficient of retroreflected luminance) is used for the measurement. RA is a measure of the
visibility of the road signs as seen by drivers of motorized vehicles in headlight illumination.
The Retro Sign is available in different versions.
For type GRX ASTM the sign is illuminated at an entrance angle of -4º and 30 the
measurements are made with angles between illumination and observation of 0.2º and 0.5º.
This is relevant for a motorist viewing situation under normal conditions.
The Retro Sign GRX is factory calibrated. This calibration is carried out using a standard.
The reference’s RA value is measured in the laboratory using traceable methods and
equipment.
The enclosed reference cap should be used for verification and recalibration of the Retro
reflectometer

2. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER –
BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
3 | P a g e
Reference Cap (Standard Calibration Reference)
To make sure that the calibration of the Retro reflectometer is correct it is important that the
surface on the reference cap is clean and undamaged. Keep the cap protected, and be careful
not to touch the reference cap (reflective side).
If the surface is stained, scratched, or broken the reference cap must be replaced.
In case of dust on the surface, clean the reference cap gently by using a soft cloth with a mild
house hold detergent. Wipe carefully with dry linen cloth afterwards.
To ensure reliable measurements, it is recommended that the reference cap is periodically
recalibrated to a traceable standard. DELTA Light & Optics offers calibration traceable to
PTB (Physikalisch – Technishe Bundesanstalt) and NIST (National Institute of Standards
and Technology). For information contact your local distributor or DELTA Light & Optics,
Denmark.
The Retro Sign is factory calibrated, but a calibration should always be carried out before
starting a series of measurements.
The calibration process automatically compensates for instrument offsets, leakage and other
known “errors” and calculates calibration factors for each observation angle. After a
calibration the Retro reflectometer will display »true« RA values.
Recommended Standard for Road Sign Reflectivity Values
"Retro-reflection" means the reflection of light which is returned in directions close to the
direction from which it came, and this property being maintained even over wide variations
of the direction of the incident radiation.
"Observation angle" is the angle between the illumination axis.

3. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER –
BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
4 | P a g e
"Entrance angle" means the angle from the illumination axis to the reference axis. The
reference axis is an axis perpendicular to the retro reflective surface as shown:
Retro reflectivity Test Results
The test work was carried out on May-2021 by classifying different Road Sign Boards on
sheeting of White, Green, Blue and Yellow of different Sign boards at Adloor Yellareddy to
Bowenpalli. The respective results are shown in 2 Entrance Angles -4°/+30° and 2
observation angles of 0.2° and 0.5°. Road Signs Retro reflectivity tested in two Entrance
Angles -4° and +30° and in 2 Observation Angles of 0.2°and 0.5°.

4. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER –
BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
5 | P a g e
Calibration Certificate

5. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER –
BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
6 | P a g e
"Testing Method Applied Based on ASTM E1709 and ASTM E2540 Condition Report
Generated using IRC 67-2012"
Minimum Co-efficient as per IRC 67

6. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER –
BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
7 | P a g e

7. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Test Results are Given Below:
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
1 0+000 Chevron Yellow/black LHS Informatory/Guide XI 0.2 -4 442
1 0.2 30 173
1 0.5 -4 339
1 0.5 30 123
1 1 -4 97
1 1 30 43
2 0+050 Information Board Green/White LHS Informatory/Guide XI 0.2 -4 592 66
2 0.2 30 226 40
2 0.5 -4 431 52
2 0.5 30 156 30
2 1 -4 126 25
2 1 30 58 11
3 0+100 Chevron Yellow/black LHS Informatory/Guide XI 0.2 -4 445
3 0.2 30 180
3 0.5 -4 324
3 0.5 30 118

8. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
3 1 -4 97
3 1 30 41
4 0+400 Hazard Yellow/black LHS Cautionary/Warning XI 0.2 -4 441
4 0.2 30 175
4 0.5 -4 320
4 0.5 30 115
4 1 -4 97
4 1 30 41
5 0+420 Hazard Yellow/black RHS Cautionary/Warning XI 0.2 -4 445
5 0.2 30 176
5 0.5 -4 336
5 0.5 30 117
5 1 -4 98
5 1 30 40
6 0+550 Hazard Yellow/black LHS Cautionary/Warning XI 0.2 -4 440
6 0.2 30 170
6 0.5 -4 346
6 0.5 30 118

9. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
6 1 -4 95
6 1 30 42
7 0+600 Hazard Yellow/black RHS Cautionary/Warning XI 0.2 -4 448
7 0.2 30 172
7 0.5 -4 347
7 0.5 30 123
7 1 -4 97
7 1 30 46
8 01+200 Bus stop Blue/White LHS Informatory/Guide XI 0.2 -4 587 35
8 0.2 30 232 34
8 0.5 -4 430 42
8 0.5 30 170 25
8 1 -4 126 18
8 1 30 59 11
9 01+250 Village Information Board Green/White LHS Informatory/Guide XI 0.2 -4 586 71
9 0.2 30 237 31
9 0.5 -4 434 54
9 0.5 30 166 27

10. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
9 1 -4 134 21
9 1 30 60 19
10 01+400 Right Crew Red/Black Cautionary/Warning XI 0.2 -4 109
10 0.2 30 60
10 0.5 -4 73
10 0.5 30 43
10 1 -4 41
10 1 30 25
11 01+450 Chevron Yellow/black LHS Informatory/Guide XI 0.2 -4 447
11 0.2 30 180
11 0.5 -4 350
11 0.5 30 124
11 1 -4 98
11 1 30 43
12 01+500 Chevron Yellow/black LHS Informatory/Guide XI 0.2 -4 441
12 0.2 30 171
12 0.5 -4 321
12 0.5 30 120

11. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
12 1 -4 95
12 1 30 43
13 01+550 Chevron Yellow/black LHS Informatory/Guide XI 0.2 -4 449
13 0.2 30 170
13 0.5 -4 338
13 0.5 30 119
13 1 -4 97
13
1 30
40
14 01+600 Village Information Board Green/White LHS Informatory/Guide XI 0.2 -4 585 65
14 0.2 30 240 40
14 0.5 -4 429 54
14 0.5 30 159 25
14 1 -4 130 21
14 1 30 60 10
15 01+650 Height Board 5.5m Red/Black LHS Cautionary/Warning XI 0.2 -4 120
15 0.2 30 50
15 0.5 -4 76

12. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
15 0.5 30 54
15 1 -4 29
15 1 30 18
16 01+680 Chevron Yellow/black LHS Informatory/Guide XI 0.2 -4 450
16 0.2 30 172
16 0.5 -4 331
16 0.5 30 123
16 1 -4 96
16 1 30 48
17 02+400 Right Crew Red/Black RHS Cautionary/Warning XI 0.2 -4 104
17 0.2 30 42
17 0.5 -4 73
17 0.5 30 41
17 1 -4 33
17 1 30 23
18 02+400 Chevron Yellow/black LHS Informatory/Guide XI 0.2 -4 449
18 0.2 30 177
18 0.5 -4 336

13. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
18 0.5 30 115
18 1 -4 95
18 1 30 49
19 03+200 left Crue Red/Black RHS Cautionary/Warning XI 0.2 -4 99
19 0.2 30 69
19 0.5 -4 90
19 0.5 30 42
19 1 -4 35
19 1 30 30
20 03+400 Right Crew Red/Black RHS Cautionary/Warning XI 0.2 -4 103
20 0.2 30 42
20 0.5 -4 72
20 0.5 30 41
20 1 -4 47
20 1 30 26
21 04+200 Chevron Yellow/black LHS Informatory/Guide XI 0.2 -4 447
21 0.2 30 173
21 0.5 -4 348

14. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
21 0.5 30 123
21 1 -4 97
21 1 30 43
22 04+950 Chevron Yellow/black LHS Informatory/Guide XI 0.2 -4 450
22 0.2 30 176
22 0.5 -4 342
22 0.5 30 120
22 1 -4 99
22 1 30 45
23 04+950 Chevron Yellow/black LHS Informatory/Guide XI 0.2 -4 442
23 0.2 30 173
23 0.5 -4 323
23 0.5 30 115
23 1 -4 99
23 1 30 47
24 04+700 Right Crew Red/Black LHS Cautionary/Warning XI 0.2 -4 112
24 0.2 30 59
24 0.5 -4 72

15. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
24 0.5 30 54
24 1 -4 46
24 1 30 28
25 04+650 Reverse Bend Red/Black LHS Cautionary/Warning XI 0.2 -4 96
25 0.2 30 51
25 0.5 -4 74
25 0.5 30 33
25 1 -4 37
25 1 30 16
26 04+750 Reverse Bend Red/Black RHS Cautionary/Warning XI 0.2 -4 96
26 0.2 30 49
26 0.5 -4 74
26 0.5 30 50
26 1 -4 27
26 1 30 15
27 05+900 Chevron Yellow/black LHS Informatory/Guide XI 0.2 -4 450
27 0.2 30 176
27 0.5 -4 327

16. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
27 0.5 30 120
27 1 -4 96
27 1 30 50
28 06+000 Chevron Yellow/black RHS Informatory/Guide XI 0.2 -4 440
28 0.2 30 179
28 0.5 -4 331
28 0.5 30 120
28 1 -4 97
28 1 30 43
29 06+300 Right Crew Red/Black LHS Cautionary/Warning XI 0.2 -4 117
29 0.2 30 68
29 0.5 -4 78
29 0.5 30 36
29 1 -4 36
29 1 30 15
30 06+300 Chevron Yellow/black RHS Informatory/Guide XI 0.2 -4 444
30 0.2 30 178
30 0.5 -4 323

17. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
30 0.5 30 115
30 1 -4 95
30 1 30 44
31 06+750 Speed Limit Red/black LHS Informatory/Guide XI 0.2 -4 94
31 0.2 30 69
31 0.5 -4 76
31 0.5 30 30
31 1 -4 47
31 1 30 30
32 07+300 Speed Limit Red/black RHS Informatory/Guide XI 0.2 -4 120
32 0.2 30 51
32 0.5 -4 73
32 0.5 30 33
32 1 -4 43
32 1 30 26
33 07+600 Right Turn Red/black LHS Cautionary/Warning XI 0.2 -4 96
33 0.2 30 46
33 0.5 -4 74

18. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
33 0.5 30 36
33 1 -4 28
33 1 30 20
34 07+900 Bus stop Blue/White LHS Informatory/Guide XI 0.2 -4 589 33
34 0.2 30 235 33
34 0.5 -4 432 32
34 0.5 30 164 25
34 1 -4 134 22
34 1 30 59 11
35 08+400 Height Board 5.5m Red/Black LHS Cautionary/Warning XI 0.2 -4 113
35 0.2 30 57
35 0.5 -4 85
35 0.5 30 43
35 1 -4 48
35 1 30 16
36 08+450 Speed Limit Red/black LHS Informatory/Guide XI 0.2 -4 115
36 0.2 30 40
36 0.5 -4 81

19. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
36 0.5 30 50
36 1 -4 46
36 1 30 25
37 08+500 Chevron Yellow/black RHS Informatory/Guide XI 0.2 -4 441
37 0.2 30 180
37 0.5 -4 348
37 0.5 30 121
37 1 -4 100
37 1 30 45
38 08+550 Chevron Yellow/black RHS Informatory/Guide XI 0.2 -4 446
38 0.2 30 171
38 0.5 -4 326
38 0.5 30 121
38 1 -4 97
38 1 30 43
39 08+750 Right Crew Red/Black LHS Cautionary/Warning XI 0.2 -4 112
39 0.2 30 68
39 0.5 -4 81

20. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
39 0.5 30 60
39 1 -4 36
39 1 30 22
40 09+000 Speed Limit Red/black LHS Informatory/Guide XI 0.2 -4 105
40 0.2 30 50
40 0.5 -4 70
40 0.5 30 46
40 1 -4 50
40 1 30 28
41 09+100 No-Overtake Red/black RHS Cautionary/Warning XI 0.2 -4 115
41 0.2 30 51
41 0.5 -4 70
41 0.5 30 42
41 1 -4 50
41 1 30 19
42 0+075 Speed Limit Red/black LHS Informatory/Guide XI 0.2 -4 90
42 0.2 30 46
42 0.5 -4 75

21. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
42 0.5 30 48
42 1 -4 49
42 1 30 26
43 0+075 Chevron Yellow/black RHS Informatory/Guide XI 0.2 -4 449
43 0.2 30 173
43 0.5 -4 346
43 0.5 30 117
43 1 -4 100
43 1 30 50
44 0+800 Speed Limit Red/black LHS Informatory/Guide XI 0.2 -4 100
44 0.2 30 58
44 0.5 -4 90
44 0.5 30 33
44 1 -4 25
44 1 30 25
45 0+850 Height Board 5.5m Red/Black LHS Cautionary/Warning XI 0.2 -4 108
45 0.2 30 62
45 0.5 -4 80

22. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
45 0.5 30 46
45 1 -4 28
45 1 30 19
46 01+100 Chevron Yellow/black RHS Informatory/Guide XI 0.2 -4 444
46 0.2 30 171
46 0.5 -4 328
46 0.5 30 120
46 1 -4 98
46 1 30 49
47 01+150 left Crue Red/Black Cautionary/Warning XI 0.2 -4 108
47 0.2 30 58
47 0.5 -4 89
47 0.5 30 33
47 1 -4 45
47 1 30 20
48 01+600 Chevron Yellow/black RHS Informatory/Guide XI 0.2 -4 447
48 0.2 30 179
48 0.5 -4 326

23. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
48 0.5 30 123
48 1 -4 99
48 1 30 45
49 01+650 Height Board 5.5m Red/Black LHS Cautionary/Warning XI 0.2 -4 119
49 0.2 30 48
49 0.5 -4 82
49 0.5 30 49
49 1 -4 31
49 1 30 23
50 02+000 Village Information Board Green/White LHS Informatory/Guide XI 0.2 -4 592 71
50 0.2 30 239 39
50 0.5 -4 434 49
50 0.5 30 161 28
50 1 -4 135 23
50 1 30 57 16
51 02+000 Right Turn Red/black LHS Cautionary/Warning XI 0.2 -4 96
51 0.2 30 43
51 0.5 -4 85

24. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
51 0.5 30 52
51 1 -4 41
51 1 30 15
52 02+200 Chevron Yellow/black RHS Informatory/Guide XI 0.2 -4 444
52 0.2 30 175
52 0.5 -4 321
52 0.5 30 120
52 1 -4 100
52 1 30 48
53 03+100 Bus stop Blue/White RHS Informatory/Guide XI 0.2 -4 591 49
53 0.2 30 235 35
53 0.5 -4 427 27
53 0.5 30 165 22
53 1 -4 130 20
53 1 30 59 13
54 03+150 Right Turn Red/black LHS Cautionary/Warning XI 0.2 -4 115
54 0.2 30 69
54 0.5 -4 71

25. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
54 0.5 30 36
54 1 -4 33
54 1 30 19
55 03+400 Bus stop Blue/White RHS Informatory/Guide XI 0.2 -4 587 46
55 0.2 30 234 20
55 0.5 -4 429 50
55 0.5 30 157 30
55 1 -4 133 23
55 1 30 50 17
56 04+050 Village Information Board Green/White LHS Informatory/Guide XI 0.2 -4 589 73
56 0.2 30 240 39
56 0.5 -4 435 52
56 0.5 30 166 27
56 1 -4 136 25
56 1 30 50 18
57 05+000 Village Information Board Green/White LHS Informatory/Guide XI 0.2 -4 587 73
57 0.2 30 238 34
57 0.5 -4 430 49

26. MAINTENANCE STAGE UNDER HAM MODE OF SINGLE LANING WITH PAVED SHOULDER OF MUNGER – BIHARIGANJ SECTION OF NH-333B FROM KM 0.000 TO KM 5.050 KM IN
THE STATE OF BIHAR”
Draft Report of Retro-Reflection of Road Signs
Sr.
No.
Chainage Sign Board Colour SIDE
Sign
Board
Category
Class
of
Sign
Board
Observation
Angle
(in
Degree)
Entrance
Angle
(in
Degree)
White
Yellow
Red
Green
Orange
Blue
Brown
57 0.5 30 168 30
57 1 -4 134 25
57 1 30 57 13
58 05+050 Information Board Green/White LHS Informatory/Guide XI 0.2 -4 592 68
58 0.2 30 240 36
58 0.5 -4 428 54
58 0.5 30 158 24
58 1 -4 132 19
58 1 30 54 18
Remarks: All Sign Board are in Good Conditions.
Note: -
1. All Sign Board Marked in Green Are Acceptable.
2. All Sign Board in Red Are Not Acceptable/ Need to Be Replace.