Answer / mayur

Test cases for traffic signals in a four road junction?
1. Check the availability of the pole having light in
four directions.
2. Check the signal is not in between road, it beside
the road or it’s in center of the road with proper high so
that a container can easily go through it.
3. Check the power supply of the light.
4. Check it show proper time for red and green light.
5. Check the light is glowing as per traffic rule i.e.
start with green, yellow and then red.
6. check the traffic signal show yellow light after
11:00pm, the time will be differ for
the city wise.
7. Also check the traffic signal in rainy season its
working properly or not because there is a chance of short
circuit due to rain water drop on internal circuit.
Tell me if I am wrong.

Answer / raghu

Check for the availability of POLE with Lights in FOUR
Directions.
Check for the POWER connection of the lights.
Check whether the Availability of GREEN,RED,yellow lights.
Check whether the Lights are glowing as per the Traffic
rules i.e starts with red light,Yellow light before the
green signal come out,Green light at the last.

Answer / venkat

just few points i am gonna add here.,

1. if GREEN is ON other two should be in OFF.
2. if RED is ON other two should be in OFF.
3. if YELLOW is ON other two should be in OFF.
4. GREEN lights should be shown as GREEN color(as per same
for rema., two).
5. since it's four roads juction so at a time two signal
can be in GREEN other two should be in RED.
6. GREEN in max 60 sec.
7. RED in max 25 sec.
8. YELLOW in max 5 sec.
9. YELLOW light should be plink and after 5 sec GREEN has
to be shown.

Answer / homram

traffic signal

check signal are working propertly or not in all direction
or not
check signal symbol are there or not
check any one do not follow the signal are not
it show time in all direction or not
it display correct time or not

Answer / mamata

about four sides they asked.

if one side is red signal the opposite side should be green.
after green for 60sec then that should change as red and opposite side should change to green.

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