Skip to main content

New Siemens loop detector functionality

An improved version of the SLD4 loop detector family is now available from Siemens. The upgraded SLD4 is said to include sophisticated length-based classification with configurable outputs, which can be set to activate when specific conditions are detected, such as large vehicles exceeding a predefined speed. As well as offering standard vehicle detection, the latest version of the SLD4 ca
November 11, 2013 Read time: 2 mins
Siemens SLD4 loop Detector
An improved version of the SLD4 loop detector family is now available from 1134 Siemens.

The upgraded SLD4 is said to include sophisticated length-based classification with configurable outputs, which can be set to activate when specific conditions are detected, such as large vehicles exceeding a predefined speed.

As well as offering standard vehicle detection, the latest version of the SLD4 can also be used in specialised bus, tram and Light Rail Transport (LRT) schemes and other similar applications requiring excellent detection accuracy.

Designed for maximum reliability and using the latest inductive loop detection algorithms, the SLD4 detector family complements the company’s full range of detection options. These include Selective Vehicle Detection and above-ground detection of vehicles and pedestrians.

According to Keith Manston, 2768 Siemens Mobility, Traffic Solutions head of product management, the enhanced SLD4 still delivers the self-tuning and fully automatic set-up features of the existing SLD4, ensuring optimum and reliable performance without interference. This is said to represent a significant advantage over manual setting of frequency and sensitivity parameters which can often be a challenge, with failure to achieve this correctly causing detectors to ‘chatter’ or otherwise fail to operate.

SLD4 detectors are fully compliant with UK specification TR2512 and provide four separate detection channels with full solid-state outputs for maximum reliability. For challenging or special applications, a PC support tool enables many aspects of the detectors’ functions to be accessed for specific deployment scenarios.

The detectors may also be powered from either AC or DC supplies. Low power requirements, with operation possible at voltages as low as 10V DC, makes support within battery powered equipment a viable option where needed.

For more information on companies in this article

Related Content

  • Innovative traffic information technology used in Vancouver
    April 12, 2012
    As the world descended on Vancouver for the 2010 Winter Olympics, visitors were able to travel around the city with confidence and intelligence thanks to a landmark project by IRF Member, Delcan
  • Emergent aggregates market vitality
    March 12, 2014
    New research shows the vital importance of emerging markets to the aggregate production industry, while leading aggregate production equipment manufacturers have brought new cutting-edge models onto the market. Meanwhile, recent equipment purchases are playing a key role in boosting the commercial success of customers in France and Malta. Guy Woodford reports Demand for construction aggregates in the Asia/Pacific and Africa/Middle East regions is fuelling global aggregates sales growth, according to the
  • Workzone safety protects workforce and drivers
    May 3, 2012
    Highway construction work zones are dangerous places, and anything that can improve safety is welcomed as Patrick Smith reports. The safe and efficient flow of traffic through work zones is a major concern to transportation officials, industry, the public, businesses, and commercial motor carriers. This is the view of the US Federal Highway Administration (FHWA), which has developed the Highway Work Zone Safety Program to reduce the fatalities and injurious crashes in work zones, and to enhance traffic oper
  • Developments in asphalt compaction machines
    July 4, 2012
    Mike Woof reviews the latest compaction market developments In the run-up to the upcoming World of Asphalt event in Orlando, Florida in March, the leading compaction equipment firms are rolling out upgraded and improved machines. With market conditions tough worldwide, customers are also likely to be encouraged with competitive deals on purchasing new machines and replacing ageing fleets.