The four event response metrics in the CAMP-DWM study in Example 2 (Miss%_ CHMSL
, Miss_%LVD, RT_CHMSL, and RT_LVD) were to a single "surprise" event per task trial, either a CHMSL
event or lead vehicle deceleration event.
Hella offered an aftermarket neon CHMSL
in the late 1990s.
RAY: Anyway, most CHMSLs
these days are LED fixtures (that's Light Emitting Diode, by the way).
On the exterior of the car, LEDs have been used primarily in CHMSL
. We believe that the potential uses are much greater," says Aldo Kamper, director of visible LEDs for Osram Opto Semiconductor's automotive business.
This result is consistent with the CAMP-DWM study that found higher RTs to CHMSL
activation in a forward vehicle during Visual-Manual tasks compared to Auditory-Vocal tasks, as shown in [2, Figure 6].
This general approach -- of reducing the lag in communication between the drivers -- led to the development of the center high-mounted stop lamp (CHMSL
The vehicle features a signature V-shaped deck and tailgate motif, large vertical tail lamps with light-pipe technology, a power-opening liftgate, CHMSL
integrated in the roof spoiler, an integrated roof load management system with cross bars, all-wheel drive, a 40-gigabyte internal hard drive, pop-up navigation screen and a hand-cut-and-sewn interior with Sapele wood accents.
3M has developed examples where a PLE replaced incandescent and multiple LED CHMSL
designs, added safety lighting by illuminating liftgate grab handles, provided directed cargo area lighting, illuminated map pockets and cupholders by adding an integrated proximity sensor, and placed low-glare reading lamps in the front seatbacks.
The improved brake light arrangements that culminated in the incorporation of the center high-mounted stop light (CHMSL
) is the most ubiquitous result of these efforts.
At the rear of the vehicle there is a spoiler--functional--that also is used to house the CHMSL
and backlight washer nozzle.
GM will supply the antennae module, CHMSL
, license plate surround and SMC roof panels, which will be painted with the rest of the body, sent to CTS for module assembly, and sequenced back into the assembly line.
This line of research culminated in the development, evaluation, demonstration of effectiveness, and implementation of the center high-mounted stop light (CHMSL
) as part of the mandatory Motor Vehicle Safety Standard 108 for Lamps, Reflective Devices, and Associated Equipment.