In olden days road locomotive carrying a red flag by day and red lantern by night. Safety is the prime motive of every traffic.
Kinds of road signs
• Cautionary and
Mandatory signs (Fig 1)
Violation of mandatory sign can lead to penalties. Eg. Stop, give way, limits, prohibited, no parking and compulsory sign.
Cautionary signs (Fig 2)
Cautionary/ warning signs are especially safe. Do’s and don’ts for pedestrians, cyclists, bus passengers and motorists.
Information signs (Fig 3)
Information signs as especially benefit to the passengers and two wheelers.
Marking lines on road (Fig 4)
• Marking lines are directing or warning to the moving vehicles, cyclist and pedestrians to follow the law.
• Single and short broken lines in the middle of the road allow the vehicle to cross the dotted lines safely overtake whenever required.
• When moving vehicle approaching pedestrian crossing,be ready to slow down or stop to let people cross.
• Do not overtake in the vicinity of pedestrian crossing.
Police signals (Fig 5)
To stop a vehicle approaching from behind. (Fig 5/1)
To stop a vehicle coming from front. (Fig 5/2)
To stop vehicles approaching simultaneously from front
and behind. (Fig 5/3)
To stop traffic approaching from left and wanting to turn
right. (Fig 5/4)
To stop traffic approaching from the right to allow traffic
from left to turn right. (Fig 5/5)
To allow traffic coming from the right and turning right by
stopping traffic approaching from the left. (Fig 5/6)
Warning signal closing all traffic. (Fig 5/7)
Beckoning on vehicles approaching from left. (Fig 5/8)
Beckoning on vehicles approaching from right. (Fig 5/9)
Beckoning on vehicles from front. (Fig 5/10)
Traffic light signals (Fig 6)
Red means stop. Wait behind the stop line on the carriage
way. (Fig 6/1)
Red and amber also means stop. Do not pass through or
start until green shows. (Fig 6/2)
Green means you may go on if the way is clear. Take
special care if you mean to turn left or right and give way
to pedestrians who are crossing. (Fig 6/3)
Amber means stop at the stop line. you may only go on if
the amber appears after you have crossed the stop line or
so close to it that to pull up may not be possible. (Fig 6/4)
Green arrow means that you may go in the direction shown
by the arrow. You may do this whatever other lights may
be showing. (Fig 6/5)
Pedestrians – do not cross. (Fig 6/6)
Pedestrians – cross now. (Fig 6/7)
Flashing red means stop at the stop line and if the way is
clear proceed with caution. (Fig 6/8)
Flashing amber means proceed with caution. (Fig 6/9)
Collision causes (Fig 7)
Three factors are responsible for collision
• Vehicles and
The Fig 8 shows approximately proportionate causes of collision. In wrong attitudes such that avoid foolish acts at the wheel (Fig 8). Driving time is not play time.