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Bengaluru's blue & white blinking traffic lights: Here's what they mean

I googled but most results are pointing to blue lights beings used as timers to show upcoming change in red light so that people can shut off engine at traffic stops.

BHPian ritesh_44 recently shared this with other enthusiasts.

Hi everyone,

Does anyone knows the meaning of blue and white blinking traffic lights?

I saw it near electronic city flyover in Bengaluru. I googled but most results are pointing to blue lights beings used as timers to show upcoming change in red light so that people can shut off engine at traffic stops. But these lights are continuously blinking ( I have a video but don't know how to attach it here).

Here's what BHPian CrAzY dRiVeR had to say on the matter:

On the Hosur - Krishnagiri highway section and several other major highways in TN, these are used more like hazard lights, flashing continuously, to alert road users about accident prone areas.

One article from TN that mentions the same:

 Multi-colour blinker lights come up at select spots in Tiruchi City to curb accidents.

 But never seen it inside Bangalore city earlier.

Here's what BHPian condor had to say on the matter:

Have seen these specifically on the E-city to Attibele stretch. One possibility is that these indicate a break in median, and traffic is cutting across the main-road. Reason to say this is that this combination of such lights and break in median were the only "co-incidences" we could notice.

Here's what BHPian ninjatalli had to say on the matter:

These are the lights that signal the police presence. I am not aware of the exact reason for putting them up on highways, but they are quite common in and around Chennai (and I believe across TN). I have noticed them on/adjacent to police checkpoints and posts at junctions across the city, also at several junctions/crossing points on many highways. There's one near my home on the top of a police booth; and the lights are on irrespective whether there's a traffic cop sitting in that booth.

I believe it's to apply to the subconscious-ness of the driver; the connect to the police lights might induce less reckless driving and following rules. They might be also used to indicate potential hazard/accident points as discussed above.

Here's what BHPian SS-Traveller had to say on the matter:

Continuously blinking traffic lights, called semaphores, are usually amber in colour (rarely red in some places, where they replace a STOP sign), but this seems to be creativity being taken to the next level! As I said in another thread recently:

We create history by creating our own road signs that are neither self-explanatory, nor conforming to the UN Convention. For a driving population that does not know the conventional signs, any random sign can be passed off as valid, by the super-creative minds of the country's traffic police forces.

Here's what BHPian shancz had to say on the matter:

Isn't blue and red a standard for police vehicles ? Asking just out of observation.

Although it doesn't make sense to indicate police presence with permanant lights. Their vehicles can do that easily. The police presence could be due to earlier accidents or pre-emptive.

I would guess its for warning of obstructions like medians etc. The icon itself is quite weird, IIRC have seen it in tunnels to indicate lane closure(UAE) although that was temporary due to an accident but never in blue/white.

We(DMV/MoRTH/RTO) really need to get their act together and refactor their material, release new "courseware" and then get on a relentless driving education and enforcement campaign across the country.

Or so I dream.

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