NLEX, SCTEX, Over-Speeding, Speed-Radar [MERGED Threads]

[renzo_d10]

GH, pano mo nadedetect yung sa NLEX/SCTEX ? Meron ka different device aside from your Valentine One?

Kapag gabi nga hindi na masyado humahataw mga tao. Nakakainis lang kasi grabe hoggers ng overtaking lane kapag gabi. Ibahin ang madaling araw though, diyan marami.

[ghosthunter]

oo nga pala sir GH, radar detector gamit sa NLEX. bakit pa magkaiba gamit nilang device?

Dunno. Maybe simple price bidding lang or advantage of pinpoint aiming on specific "offending" cars. NLEX bought their radar speed guns earlier while the MMDA and SLEX people bought theirs only very recently.

I am assuming one of the reasons why they chose the laser speed guns is it is hard to "avoid" getting caught even if you have a laser detector. Although a laser/radar detector will sound the alarm if it senses a laser hit, it is usually too late to take any evasive action because it only takes a fraction of a second to measure your car's current speed & take a photo at the same time. There is also very little overflow emissions so vehicles (with detectors) farther away can sense the laser. Radars usually have a wider beam so it is easy to detect it even in excess of 1 or 2 km away (terrain dependent).

Hence, I have a laser jammer (instead of laser detector). Once the laser jammer detects a signal, it shoots back a signal to make the laser gun read "error". At same time, the laser jammer device will sound an alarm so the driver may take evasive action.

[ghosthunter]

GH, pano mo nadedetect yung sa NLEX/SCTEX ? Meron ka different device aside from your Valentine One?

I just have my Valentine One radar/laser detector. I also have a laser jammer system installed in my ride.

The Valentine One display shows the type and number of radar/laser signals as well as how strong the signals are (assuming it's not yet to alarm levels).

[bobzy]

Sir GH 1 question po, does this laser/radar detectors able to detect/jam if they are positioned to shoot at the rear side of the car?
i mean patalikod kasi ang style ng pagshoot ng radars dito sa doha, so will the detectors able to "sense" them from far away? TY!

[ghosthunter]

Sir GH 1 question po, does this laser/radar detectors able to detect/jam if they are positioned to shoot at the rear side of the car?
i mean patalikod kasi ang style ng pagshoot ng radars dito sa doha, so will the detectors able to "sense" them from far away? TY!

Depends on your detector brand/model..

In the case of the Valentine One, it will detect radar/laser sources from front/side/rear (radar) and front/rear (for laser). BTW, window tint will affect the detector's sensitivity.

Are you sure they use radar and not laser in doha?

Anyway, given the cops shoot the rear end of the car makes it harder to detect the speed-trap from long distances because the radar emissions are going in the other way. It is possible to detect the radar "scatter" (radar beam reflections from metal objects) at close distances but it wouldn't be dependable as a warning.

[vinj]

When I passed through NLEX/SCTEX (on my way to Manila), it was already passed noon time.

But during our drive to Baguio, I didn't bother setting up my detector because it was still too dark.

Usually around lunch time, the speed guys aren't around. Hot times are usually in the morning until before lunch. Last December 22, i spotted the Crosswind in the Bulacan south bound area in it's parked "hunting" angle.

[clairenceh]

dati akala talaga namin walang naghuhuli sa SCTEX. Parang, pag sctex na wala kang aalahanin. pero isang araw nagulat nalang kami.... ngayon lagi ko ng nakikita yung white isuzu crosswind yata malapit sa concepcion exit sa taas ng overpass (un ba tawag dun?). tanong ko lang, meron bang nanghuhuli kapag gabi na o madaling araw and pag sunday? 24/7 ba sila?

[renzo_d10]

dati akala talaga namin walang naghuhuli sa SCTEX. Parang, pag sctex na wala kang aalahanin. pero isang araw nagulat nalang kami.... ngayon lagi ko ng nakikita yung white isuzu crosswind yata malapit sa concepcion exit sa taas ng overpass (un ba tawag dun?). tanong ko lang, meron bang nanghuhuli kapag gabi na o madaling araw and pag sunday? 24/7 ba sila?

Wala. Kasi hindi naman na gumagana speed guns nila pag gabi.

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[vinj]

Wala. Kasi hindi naman na gumagana speed guns nila pag gabi.

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However, it's not advisable to go at high speeds at night either due to limited visibility. I recall before a husband and wife were killed in an accident on SCTEX as they failed to see a truck with poor/no lighting.

[Chikselog]

However, it's not advisable to go at high speeds at night either due to limited visibility. I recall before a husband and wife were killed in an accident on SCTEX as they failed to see a truck with poor/no lighting.

Saksakan ng dilim sa SCTEX sa gabi. Konti lang ang area na may street lights. Overspeeding in almost complete darkness is a stupid thing to do.

[beni23]

Saksakan ng dilim sa SCTEX sa gabi. Konti lang ang area na may street lights. Overspeeding in almost complete darkness is a stupid thing to do.

Yep, kaya naka-high beam lahat ng kasalubong. At syempre magha-high beam ka na rin.


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[renzo_d10]

Yup grabe dilim sa sctex. Naalala ko nung dumaan ako diyan ng 1am before, I was around 120kph that time then a Hyundai GC just zoomed right past through me. Few seconds, he was out of my sight. Hehehe. He must have been running twice my speed. Oh well, mas maliwanag naman hl's niya sakin.

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[jut703]

Best time to run is around 5:30-6:30 AM - wala pang highway patrol, pero maliwanag na

[rafmac]

I observed during the lastb2 holidays i went to Subic, last August and this new year that it seems that lax sila to enforce the speed limits as o observed a lot of cars going over 110 kmh but walang nahuhili

[IMm29]

Saksakan ng dilim sa SCTEX sa gabi. Konti lang ang area na may street lights. Overspeeding in almost complete darkness is a stupid thing to do.

What they should've installed are those Cats Eyes (80s term?? hehehe!) that they have in the US. It serves 2 purposes:
- Lights up the road by reflecting whatever light comes into contact with it, so even without street lights, your headlights will be enough to show you the road ahead.
- Acts as rumble strips to remind you to keep in your lane in case you get drowsy and drift into the adjacent lane.

[Chikselog]

What they should've installed are those Cats Eyes (80s term?? hehehe!) that they have in the US. It serves 2 purposes:
- Lights up the road by reflecting whatever light comes into contact with it, so even without street lights, your headlights will be enough to show you the road ahead.
- Acts as rumble strips to remind you to keep in your lane in case you get drowsy and drift into the adjacent lane.

+1. Sa mahal ng toll dun eh di man lang nila malagyan lagyan.

On our recent trip to Baguio while driving at SCTEX at 4am may naabutan akong previous gen Vios na bulag isang headlight. Naawa ako kasi sobrang dilim talaga, sinabayan ko ng takbo. Nung binilisan ko konti sumabay rin sya.

[bobzy]

Depends on your detector brand/model..

In the case of the Valentine One, it will detect radar/laser sources from front/side/rear (radar) and front/rear (for laser). BTW, window tint will affect the detector's sensitivity.

Are you sure they use radar and not laser in doha?

Anyway, given the cops shoot the rear end of the car makes it harder to detect the speed-trap from long distances because the radar emissions are going in the other way. It is possible to detect the radar "scatter" (radar beam reflections from metal objects) at close distances but it wouldn't be dependable as a warning.

thanks for the info Sir GH, i am not sure of how to identify if its radar or laser speed trap. normally i have seen in the case of permanent speed cameras, there are 2 holes that im sure 1 is for the camera. holes are as big as the platitos. and on the "randomly placed" speed traps, it it placed on tripods on the front of some Land Cruiser or Vans the cops are using. just the same, they are shooting the rear end of vehicles. im just curious coz my 1st year here already cost me 1500 riyals for 3 violations. 1500 x 11= 1 new cp ...

[IMm29]

+1. Sa mahal ng toll dun eh di man lang nila malagyan lagyan.

On our recent trip to Baguio while driving at SCTEX at 4am may naabutan akong previous gen Vios na bulag isang headlight. Naawa ako kasi sobrang dilim talaga, sinabayan ko ng takbo. Nung binilisan ko konti sumabay rin sya.

Diba? Andami rin namang unlit freeways sa kanila, winding roads with ups and downs pa, pero with the reflectors there you don't need the street lights. Tapos, no cost of operation. Sa mahal nila sumingil, nasagot na yung cost of installation!

What I liked about the Cats Eye-lined freeways was that you did feel safe coz you knew your boundaries. Since I drove to and from my friend's place at night before which was 1 hour 1 way, I thought it was just a regular highway. When I drove it the next time out with a bit more light, grabe, bundok pala yung dinadaanan ko! Hahaha!

Hehehe! Vios got the drift. Besides, it was probably lonely being left in the dark.

[R.Paul]

Cats Eyes? may naalala akong dinaanan na may ganyan eh. Skyway ata meron

[ghosthunter]

thanks for the info Sir GH, i am not sure of how to identify if its radar or laser speed trap. normally i have seen in the case of permanent speed cameras, there are 2 holes that im sure 1 is for the camera. holes are as big as the platitos. and on the "randomly placed" speed traps, it it placed on tripods on the front of some Land Cruiser or Vans the cops are using. just the same, they are shooting the rear end of vehicles. im just curious coz my 1st year here already cost me 1500 riyals for 3 violations. 1500 x 11= 1 new cp ...

In most cases, fixed type speed traps use radar to measure speed of the vehicle. These look like a big metal box with two holes (camera and radar). Portable type setups on tripods that are the size of the old style "video-cameras" might be laser speed cameras as their recommended operation should be mounted and not handheld. Hand-held operation of laser-speed guns can induce error in measurement.

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I found this bit of news

LINK: Bad drivers beware: Rollout of point-to-point radar system across Doha 'soon' | Doha News

It seems to talk about radar but reading it through, it was talking about LIDAR (or laser based detection).


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Talking about the tripod mounted speedgun, does it look like the following?



This is the gun currently used by the MMDA to monitor Commonwealth and Macapagal Ave as well as SLEX (I think).

The guys at the Coastal Road are using six units of Bushnell radar speed guns which look like the following: