Page 21 - TT June for Digital

ON THE COVER

THE SUPERIORITY
OF LIDAR OVER
CAMERA SYSTEMS IN

LANE DETECTION IS
ATTRIBUTED TO ITS
ABILITY TO GENERATE
PRECISE THREE-
DIMENSIONAL MAPS OF
THE SURROUNDINGS,
PROVIDING GREATER
ACCURACY ACROSS
VARIOUS DRIVING
Research indicates that in-vehicle to significant accidents and losses.
LDWS can reduce crashes by 18%, Addressing these shortcomings, SCENARIOS AND LESS
injuries by 24%, and fatalities by a novel approach has been SUSCEPTIBILITY TO
86%. LDWS operates by sensing developed at IIT Roorkee, which LIGHTING VARIATIONS.
the road environment through employs a cost-effective 3D LiDAR
optical cameras, LiDAR, and sensor capable of operating
infrared sensors, determining the effectively regardless of lighting
likelihood of a vehicle drifting conditions. This innovative system
from its lane, and issuing warnings utilizes a sparse point cloud data
through audible, tactile, or obtained from a 16-laser LiDAR
visual means if a lane departure sensor. This not only aids in
is imminent without the turn maintaining lane discipline but also
indicator being activated.
significantly enhances road safety
IIT Roorkee developed ADAS by alerting drivers of potential
is tailored to Indian drivers and lane departures before they occur.
designed to operate effectively By adopting a more economical
under various lighting conditions. 16-laser LiDAR setup, the system
Researchers have collected data also circumvents the high costs
from expressway and developed associated with more sophisticated
LDWS for high-speed corridors sensors, making it a viable option
using LiDAR sensor (Figure 1). for widespread implementation
in developing regions with similar
Traditional LDWS are often
based on camera sensors that driving conditions to India.
suffer from significant limitations, Through this research, researchers
including decreased reliability have not only addressed a vital
under poor lighting. In India, it gap in LDWS development under
is common to observe drivers varied driving conditions but also
disregarding lane markings, contributed to the broader goal
demonstrating poor lane discipline of improving vehicular safety
and obstructing traffic flow in both and reducing accident rates on
lanes. This behavior is particularly roads worldwide. Three different
prevalent on high-speed corridors, types of lateral movements have
where even minor errors can lead been taken care of: (a) Driving on

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