No | 41
Summer 2007 Volume 18
A Magazine for Professionals
Warning Signal: Gong Saves Lives | Dialogue-Display: Better Than
Rigid Systems | International: Demand Is Gigantic | Initiative:
Children Learn About Traffic | News: Bikinis Reduce Speed
2 | 3
RTB GmbH & Co.KG, Geschäftsführer Rudolf Broer
Schulze-Delitzsch-Weg 10, 33175 Bad Lippspringe,
Tel. + 49 (0) 52 52 - 97 06-0,Fax + 49 (0) 52 52 - 97 06-10
Matthias Hack, M. A., 33175 Bad Lippspringe
Machradt, Graphischer Betrieb, 33175 Bad Lippspringe
Gong Saves Lives
A powerful combination with a blinking yellow light
Better Than Rigid Systems
Clear advantages compared to speed indicators
Demand Is Gigantic
Successful premiere at Intertraffic China 2007
Children Learn About Traffic
Traffic Watch Hesse beefs up traffic education
Bikinis Reduce Speed
Notable action against speeders in Denmark
New media are a main distraction for
young persons in street traffic. Streetcar
tracks in the downtown area are frequent
cause of accidents.
➲ A powerful combination with a blinking yellow light
Inattentive to street traffic
More and more, one notices that streetcar tracks in the
downtown area are a frequent cause of accidents. The
reason is easily found: Pedestrians concentrate more on
the sms function of their cellular telephones than on
traffic. Thus the rail vehicles become a danger to life
unless an adequate warning signal is available.
The know-how of the market leading Acoustic Signal
Transmitter with walk signal has been put to use by
RTB to develop a separate product which fulfills the
prerequisites of DIN 32974 (acoustic signals in public
areas). In combination with a yellow blinking light, an
effective protection is achieved. In this manner the
situation in New York can be avoided. There the
demand has been made to make the use of cellular
phones or Blackberrys in traffic illegal.
What began as a walk signal to assist blind and low vision
persons in traffic can, with the gong feature, become
a life saver for sighted persons. The „Digital Generation“
demands modern solutions for modern traffic
problems - RTB has these modern products in its portfolio.
The well-known advantages of the RTB Acoustic Signal
Transmitter with the walk signal hold true for the RTB
Acoustic Signal Transmitter with the gong feature. One
of the main advantages is the volume control linked to
ambient noise, making the gong audible only in the immediate
area (protecting residents from noise pollution!).
Another advantage is the adjustment by way of
remote control which makes updating and maintenance
4 | 5
➲ Longitudinal study in Horn-Bad Meinberg with 380,000 vehicles
Traffic situation during the third phase
A longitudinal study in Horn-Bad Meinberg (North
Rhine-Westphalia) under the supervision of the
Technical University of Dresden made it very clear: the
Dialogue-Display reduces the speed of car drivers more
effectively than a stop sign. In the framework of this
investigation in four phases 380,000 vehicles were
The longitudinal study was conducted at an intersecting
street with bicycle traffic crossing in both
directions. In this 30 km/h zone three fourths of the
vehicles in phase 1 of the investigation were speeding.
In the second phase the Dialogue-Display was put
to use. With the support of the district president of
Detmold, the official traffic sign 1000-32 (bicycle
crossing) could be used on the Display.
The feedback "Attention" for drivers obeying the speed
limits led to surprisingly clear improvement. More than
80 % of the drivers behaved properly after the feedback.
The results prove the effectiveness of the Dialogue-
Display scientifically: Reduction of the V 85 from 48 to
38 and reduction of the average speed (Vd) from 37.91 to
31.15. If one assumes that the number of accidents can
be lowered by 4 % for each speed reduction of 1 km/h
then this success is notable. Furthermore there were no
accidents and not even a single dangerous situation
during the time the Dialogue-Display was in use at this
In the third phase the state road into which the traffic
from the intersecting street flowed was modified and
an additional stop sign was installed. In spite of this, no
further improvement in traffic speed was noticeable.
The fourth phase was characterized by the dismounting
of the Dialogue-Display – immediately the speeds
returned to approximately original values.
Motif on the
used in Horn-Bad Meinberg
The longitudinal study in Horn-Bad Meinberg not only
brought the best results to date for the Dialogue-
Display. It also shows that the rigid signage systems
(including stop signs !) have reached their limits in
All the absolutely current results can be found in the
Clear advantages compared to speed indicators
(© 2004 SchuelerNet.com)
This situation is repeated night for night some
place in Germany. Skaters conduct a race or
rowdies in cars ascertain the “High Scorer“ at a
classic speed indicator. The RTB Dialogue-
Display has, in contrast, a much higher acceptance
– and bundles numerous additional
The first communities have already decided to
no longer install simple speed indicators. The
indirect challenge to compare speeds is only one
of the problems here. It has been known for
some time that the effectiveness of speed indicators
diminishes with the rapid onset of the
familiarization effect – it has been proven that
this doesn’t happen with the Dialogue-Display.
➲ Successful Premiere at Intertraffic China 2007
In 21st century China worlds collide at full speed. The
increasing number of motor vehicles in street traffic
represents a major challenge for this gigantic country.
During its first participation at Intertraffic China, RTB
was able to experience first hand how large the
challenges are in this land shaped by tradition.
Signal facility in Beijing
with Acoustic Signal
Transmitter : Waiting
time is displayed.
6 | 7 China 2007
The traditional bicycle country China is now confronted
with a seemingly uncountable number of automobiles.
Each day, in the capital city of Beijing alone, about 1000
new cars are registered. At least it has now been decided
to have driver education and driver’s license tests in
actual traffic. Up to now the law mandated that such
driving take place in special practice areas – the development
of driving skills was mediocre to say the least.
represents a major
challenge for China.
RTB-Products at the
exhibition in Beijing
Until now, the pedestrian has played a minor role in
Chinese street traffic. The pedestrian must find his way
alone and cannot hope for assistance. The situation is
particularly precarious for blind and low vision persons.
The available traffic signals create more insecurity and
confusion and do not enhance traffic safety.
Thus it is not surprising that the number of traffic
fatalities in China reaches more than 90,000 annually –
with a rising trend. With the ever increasing number of
automobiles, the statistic could well
In this regard, Western know-how about
structuring street traffic is in high demand.
invitation from Siemens
AG, RTB participated
for the first time at Intertraffic
China. Numerous discussions
showed that RTB’s Acoustic
Signal Transmitters and Push
Buttons, which have been in
In Zjìnchéng, the Forbidden City,
the common people were not
allowed access for some time.
In 1924 the last Chinese
Emperor abdicated the
throne and from then on
the gates were open
to all persons.
use in Asia for five years, have gigantic potential in the
East Asian market.
Simultaneously, the German market will receive the
same intensive support to which it is accustomed. It is
completely clear that the emphasis of future activities
will lie in Germany
Meeting at the Great
Wall of China and the
Scientific Study of the Dialogue-Display in Shanghai
It is hardly possible to describe the backlog demand in China. Only in everyday life does it become clear, how
many measures need to be taken. However, this should not, of course, lead to uncoordinated actions. Prompt
and structured action is necessary. Therefore, RTB is supporting a scientific study of the Dialogue-Display in
China. University professor Keping Li, Phd., of the Tongji University will conduct a study in Shanghai. This study
should present additional information about the effect of the Dialogue-Display in different cultural settings.
Report in the HNA
on 14. April 2007:“This
belongs in the curriculum“
Learn About Traffic
For the State Traffic Watch Hesse, traffic
education belongs in the curricula of public
schools. Within the framework of a working
conference in Bad Arolsen, county chairman
Rolf Crone stated this demand, since very
often there is no time for education about
traffic safety in the extracurricular instructional
hours. Children must learn the basic
rules of street traffic, in order to reduce the
rate of fatalities and injuries which are still
occurring in terrible numbers. Presently
the Traffic Watch is investing much time
and money for this task. Innovative
products such as the RTB Dialogue-
Display can make this task easier. In
addition, an increased integration of parents
in the preparation and evaluation
of instruction in traffic safety makes
good sense. No doubt about it: the Traffic
Watch is on the right path !
The Danish Traffic Safety Council has begun a notable
initiative to increase attention to speed signage and speed
limits. A specially trained team of enthusiastic young
women appears in bikinis to slow down speeders.
The statistics in Denmark show how important this action
is. Although a slightly positive trend can be seen, seven out
of ten car drivers in Denmark exceed the posted speed
limits. The“Speed Bandits“ should reduce this quota
More information about the Speed Bandits: www.rtb-bl.de