400rs down the drain

gd1418 · 8th April 2008, 14:19

What is a LIDAR? Never heard this term..

Quote:

Originally Posted by tsk1979

Do they use LIDAR or RADAR?
I asked the guy but he did not have clue except for "It takes photo of numberplate".
So if you have really bright headlights, they won't get your number plate

right?
I think thats why they go away when sun goes down.

srishiva · 8th April 2008, 14:22

Laser ? instead of radio waves.

tsk1979 · 8th April 2008, 14:26

Yes LIDAR is Laser detection and world over Law enforcement is moving to Laser because
1. you can aim a target from 1km away and get the speed reading within seconds
2. Very advanced expensive detectors(as compared to RADAR detectors) so few people have them, and even those who have them get toasted before they react.

The disadvantage is that you need a vehicle or a mounting platform as handhold LIDAR is almost impossible.
You also need to aim at places like numberplates/headlights etc., where reflection can occur. Black cars are difficult to catch at night.

SirAlec · 8th April 2008, 16:58

lidar is already used in automobile. in ACC.

whatcanthisbe · 10th April 2008, 15:36

TSK they are always present NH 1 as soon as you enter delhi more over i still dont get what tech they use since they cant use the guns at night in the us 24 hrs of the day there a re cops doing speeding stops...

tsk1979 · 10th April 2008, 15:47

In the US radar is used, and the same cop gives you a chase.
A LIDAR is mostly used on fixed platform vehicle and is extremely difficult to use at night, but on a busy highway can be difficult to implment.
Moreover in the US only those people going well above the limit are stopped. In this case even people doing 93kmph were being stopped.
The police had erected a barricade and caused a small traffic jam, all for some revenue.

whatcanthisbe · 10th April 2008, 15:59

in the US they use Laser as well as Radar (how do i know.. personal experience using a V1 and a couple of my friends were state troopers)... and the same cop gives the chase ... and i have been ticked for doing 32 in a 30 Zone

More over the heaver laser speed guns are HISTORY...

Police Laser Traffic Enforcement

simplyself · 10th April 2008, 17:29

Actually, speed guns alone wouldnt suffice. The drivers should be checked for alcohol. This act alone would make very much difference to the number of accidents.

gd1418 · 10th April 2008, 19:45

Just a small point; somewhere it has been written that if you switch on your HLs or have a reflective surface on the number plate then this LIDAR can't 'see' you and hence the number can't be recorded.

It also has been mentioned that this LIDAR works at a distance of more than 1 Km. Now, in that case how does one get to know on which road the LIDAR is being used so that one could switch on the HLs well in time?

vkochar · 10th April 2008, 19:54

Wah GD Bhai !!! I did not know that switching the headlights would cause the LIDAR to not detect your number. Now that is what I call useful information.

BTW I am on the safer side - there are no interceptors on NH2 ( Agra - Delhi ), Speeds upto 150 are manageable here at many stretches. Why don't they keep any here ? I have read signs saying 90kph speed. That is good enough I feel !!

susan3004 · 10th April 2008, 20:18

Haryana police has been doing this challaning business on and off. They caught me in Nov last.
Switching on headlights and driving is an eye opener. So anytime we see a car with headlights on in broad daylight, we can assume that it's a fellow bhpian

.
I have tried another trick sucessfully but it is only if you manage to spot the police Sumo with the interceptor, when you cross it. I simply stopped around 100mts ahead of the police vehicle and took a decent break of around 15 mins. I drove catiously towards the barrier where they were stopping other defaulters and lo, they signaled me to pass through!

simply_sunny001 · 11th April 2008, 02:50

Quote:

Originally Posted by susan3004

So anytime we see a car with headlights on in broad daylight, we can assume that it's a fellow bhpian

.

Lately i have seen people driving with HL on during daytime,this trick seems to work maybe.

Quote:

Originally Posted by susan3004

I have tried another trick sucessfully but it is only if you manage to spot the police Sumo with the interceptor, when you cross it. I simply stopped around 100mts ahead of the police vehicle and took a decent break of around 15 mins. I drove catiously towards the barrier where they were stopping other defaulters and lo, they signaled me to pass through!

well thats pretty smart and i'm sure it will work unless you take a good break and let 2,3 same model/color cars to pass.

susan3004 · 11th April 2008, 21:20

Tomorrow I will be driving down from Noida-Hisar-Ambala-Kapurthala.
I will keep an eye open for these guys.

simply_sunny001 · 12th April 2008, 00:01

Quote:

Originally Posted by susan3004

Tomorrow I will be driving down from Noida-Hisar-Ambala-Kapurthala.
I will keep an eye open for these guys.

that makes it 4 states in a day

susan3004 · 13th April 2008, 20:31

Quote:

Originally Posted by simply_sunny001

that makes it 4 states in a day

When you gotta go...you gotta go!

8th April 2008, 14:22	#17
srishiva Senior - BHPian Join Date: Nov 2006 Location: Bengaluru Posts: 4,375 Thanked: 2,256 Times	Laser ? instead of radio waves.
	() Thanks

8th April 2008, 14:26	#18
tsk1979 Team-BHP Support Join Date: Feb 2005 Location: San Jose, CA Posts: 23,717 Thanked: 22,823 Times View My Garage	Yes LIDAR is Laser detection and world over Law enforcement is moving to Laser because 1. you can aim a target from 1km away and get the speed reading within seconds 2. Very advanced expensive detectors(as compared to RADAR detectors) so few people have them, and even those who have them get toasted before they react. The disadvantage is that you need a vehicle or a mounting platform as handhold LIDAR is almost impossible. You also need to aim at places like numberplates/headlights etc., where reflection can occur. Black cars are difficult to catch at night.
	() Thanks

8th April 2008, 16:58	#19
SirAlec Senior - BHPian Join Date: Sep 2006 Location: zxc Posts: 3,393 Thanked: 726 Times	lidar is already used in automobile. in ACC.
	() Thanks

10th April 2008, 15:36	#20
whatcanthisbe BHPian Join Date: Mar 2006 Location: http://www.wandering-online.com Posts: 499 Thanked: 6 Times	TSK they are always present NH 1 as soon as you enter delhi more over i still dont get what tech they use since they cant use the guns at night in the us 24 hrs of the day there a re cops doing speeding stops... Last edited by whatcanthisbe : 10th April 2008 at 15:38.
	() Thanks

10th April 2008, 15:47	#21
tsk1979 Team-BHP Support Join Date: Feb 2005 Location: San Jose, CA Posts: 23,717 Thanked: 22,823 Times View My Garage	In the US radar is used, and the same cop gives you a chase. A LIDAR is mostly used on fixed platform vehicle and is extremely difficult to use at night, but on a busy highway can be difficult to implment. Moreover in the US only those people going well above the limit are stopped. In this case even people doing 93kmph were being stopped. The police had erected a barricade and caused a small traffic jam, all for some revenue.
	() Thanks

10th April 2008, 15:59	#22
whatcanthisbe BHPian Join Date: Mar 2006 Location: http://www.wandering-online.com Posts: 499 Thanked: 6 Times	in the US they use Laser as well as Radar (how do i know.. personal experience using a V1 and a couple of my friends were state troopers)... and the same cop gives the chase ... and i have been ticked for doing 32 in a 30 Zone More over the heaver laser speed guns are HISTORY... Police Laser Traffic Enforcement
	() Thanks

10th April 2008, 17:29	#23
simplyself Senior - BHPian Join Date: Mar 2008 Location: Hyderabad Posts: 1,051 Thanked: 621 Times	Actually, speed guns alone wouldnt suffice. The drivers should be checked for alcohol. This act alone would make very much difference to the number of accidents.
	() Thanks

10th April 2008, 19:45	#24
gd1418 Senior - BHPian Join Date: May 2006 Location: Gurgaon Posts: 3,578 Thanked: 728 Times View My Garage	Just a small point; somewhere it has been written that if you switch on your HLs or have a reflective surface on the number plate then this LIDAR can't 'see' you and hence the number can't be recorded. It also has been mentioned that this LIDAR works at a distance of more than 1 Km. Now, in that case how does one get to know on which road the LIDAR is being used so that one could switch on the HLs well in time?
	() Thanks

10th April 2008, 19:54	#25
vkochar Senior - BHPian Join Date: Aug 2006 Location: Delhi / Agra / London Posts: 2,146 Thanked: 819 Times View My Garage	Wah GD Bhai !!! I did not know that switching the headlights would cause the LIDAR to not detect your number. Now that is what I call useful information. BTW I am on the safer side - there are no interceptors on NH2 ( Agra - Delhi ), Speeds upto 150 are manageable here at many stretches. Why don't they keep any here ? I have read signs saying 90kph speed. That is good enough I feel !!
	() Thanks

10th April 2008, 20:18	#26
susan3004 BHPian Join Date: Oct 2007 Location: Kapurthala Posts: 384 Thanked: 263 Times	Haryana police has been doing this challaning business on and off. They caught me in Nov last. Switching on headlights and driving is an eye opener. So anytime we see a car with headlights on in broad daylight, we can assume that it's a fellow bhpian. I have tried another trick sucessfully but it is only if you manage to spot the police Sumo with the interceptor, when you cross it. I simply stopped around 100mts ahead of the police vehicle and took a decent break of around 15 mins. I drove catiously towards the barrier where they were stopping other defaulters and lo, they signaled me to pass through!
	() Thanks

11th April 2008, 21:20	#28
susan3004 BHPian Join Date: Oct 2007 Location: Kapurthala Posts: 384 Thanked: 263 Times	Tomorrow I will be driving down from Noida-Hisar-Ambala-Kapurthala. I will keep an eye open for these guys.
	() Thanks