Browse Prior Art Database

Opposite Traffic Detecting System Disclosure Number: IPCOM000206133D
Publication Date: 2011-Apr-14
Document File: 3 page(s) / 50K

Publishing Venue

The Prior Art Database


This article describes a system to enable drivers to know the opposite traffic condition before making an attempt to overtake. This system is used to help reduce or prevent severe and/or deadly accidents on the road due to insufficient knowledge of the opposite traffic condition cause by various reasons like vision blocked by big vehicles in the front. The core idea of this system is to set up tolls at both ends of the selected roads, where an opposite traffic detecting device will be given to the drivers entering from both ends of the roads. This device operates by detecting the opposite traffic frequency. Whenever the driver is making an attempt to overtake, the device will emit alerts indicating the level of danger by detecting the opposite traffic within predefined ranges. The system is built with the considerations on low implementation cost, ease of installation/setup and ease of use.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 51% of the total text.

Page 01 of 3

Opposite Traffic Detecting System

Overtaking is one of the root causes of car accidents. This is particularly true at narrow 2 lanes 2 ways traffic (Figure 1). Accidents caused by overtaking are usually serious if not deadly. Most overtaking accidents are caused by an inability to see the traffic coming from the opposite direction due to line-of-sight blocked by big and slow-moving vehicle(s) in front of the car that intends to overtake.

Other factors that can make overtaking more dangerous are windy roads, badly designed road turns, uneven and dangerous roads such as mountain roads and country roads, and bad weather (such as fog, mist, heavy rain and/or darkness especially dawn and dusk).

This invention will be useful for roads affected by the previous factors as well as these additional factors:
· The road cannot be widened due to geographical limitations, especially mountainous areas.

· Financial limitations of local road authorities e.g. poor or developing countries.

· Roads with traffic consisting mainly of heavy big trucks/lorries; due to development and construction.

· Urban areas with narrow roads.

The invention exhibits the following considerations:
· Cost efficient device.
· Easy to install or not needing installation in car.
· Easy to operate.

(This page contains 00 pictures or other non-text object)

The core idea of the invention is to provide a way to enable the driver to know the opposite traffic condition before making an attempt to overtake.

A toll can be setup at each side of the road providing a device that will emit different but pre-configured frequencies. This device also equipped with the ability to detect the opposite direction frequency. Hence when a driver is trying to make an overtake attempt, if the device detected an opposite frequency within a defined range, it will emit a beep sound and red blinking light to alert the driver not to make any attempt to overtake as there is an opposite traffic coming.


Page 02 of 3

The biggest advantage of this invention is to reduce accidents especially in high accident rates roads.

The invention is a system consists of a portable device, road toll and the toll operator.

The key component in this invention is the portable device which has the following features:

a) Emit frequency set.
b) Detect frequency set by opposite direction traffic.
c) Calculate the distant of the opposite direction traffic and based on a preset safety range.

d) The device contained LEDs with Green, Yellow and Red colors indicating if the overtake action can be safely performed or not. It also contains an audio speaker alerting driver based on safety range.
i. Safe to overtake - Green (no sound)
ii.Overtake with caution - Yellow (beep every 2 seconds)
iii. Do not overtake - Red (beep every 0.5 second)

The device...