embarq türkiye yol güvenliği laboratuvarı-rslab projesi (embarq turkey road safety...
TRANSCRIPT
RSLab (5 Cities): EMBARQ Turkey, we aim to support cities
and the government in achieving their ambitious targets by
2020 (Decade of Action Road Safety Plan aims to reduce
traffic fatalities by 50% by 2020), build local capacity by
emphasizing the importance of data collection and road
safety audits in the transport planning phase, and promoting
sustainable transport practices that saves lives. EMBARQ
Turkey has embarked on a new project, Road Safety
Laboratory, to achieve these goals.
EMBARQ TURKEY –RSLAB PROJECT
PROJECT TEAM
İMAMOGLU ,CELAL TOLGA
Tranportation Engineer M . Sc.
Road Safety Projects Manager
EMBARQ TURKEY
Gümüşsuyu Mahallesi
İnönü Caddesi
Saadet apt. No:29/7
Tel:212 243 53 05
E-Posta: [email protected]
GHASEMLOU, Kiarash
Tranportation Engineer M.Sc.
EMBARQ TURKEY
Gümüşsuyu Mahallesi
İnönü Caddesi
Saadet apt. No:29/7
Tel:212 243 53 05
E-Posta:
PROJECT TEAM
BAŞARAN,SİVE,
Civil Engineering Student
PROJECT ASİST.
EMBARQ TURKEY
Gümüşsuyu Mahallesi
İnönü Caddesi
Saadet apt. No:29/7
Tel:212 243 53 05
E-Posta: [email protected]
WASS CARSTEN,
Certified Road Safety Auditor
CONSİA CONSULTİNG
Headquarters
Consia Consultants
Skelbaekgade 4, 6th.
DK-1717 Copenhagen V
Denmark
EMBARQ TURKEY RSLAB PROJECT
UNDER LİGHT OF ROAD SAFETY ENGİNEERİNG RECOMMENDATIONS
25 Road
Safety Studies
LIVES SAVED
70
TOTAL NUMBER OF TRAFFİIC CRASHES WİLL BE PREVENTED
500
EMBARQ TURKEY RSLAB PROJECT PROSESS
Analysing Accidents
Data
Identification of Black
Spots
Road Safety Inspections
(black spot treatment)
Reporting
Data Collection
DATA COLLECTION
Data Collection
Responsability of police
collecting of accident data
Trafficaccidents
server where data is stored
They don’t want to share
data
DATA COLLECTION
Police officier is filling out
the report on accident field
Police officier is digitizing the report
Police officier is importing the report to
POLNET
DATA COLLECTION
ERRORS IN DATA
COLLECTION
GPS ERRORS
THE MISTAKES
MADE WHILE THE REPORTS
DIGITIZING
DEFICIENCIES IN TRAFFIC ACCIDENT REPORTS
LACK OF
TRACKİNG
FATALİTİES
NUMBER
ANALYSING DATA
Lack of Expert
Lack Of SoftwarePoor Data Quality(
traffic volume, mobility value etc..)
BA
CD
A Arrangement of Raw Datas
B Importing the datas to Visum Safety
C Creating the Heat Maps
D Identification of Black Spots
ROAD SAFETY STUDIES
•Road Safety Audit
• Improved Standards
• Road Safety Inspectıons
• (Black Spots Treatment)
PROBLEM
Many vehicles were observed
braking in the curve. It was obvious
that the curve came as a surprise
to drivers.
PROBLEM
The curve is signed with a double
chevron marker and two single
chevron markers. These are not
sufficient to warn drivers and to
show the alignment of the curve.
The best solution would be to increase the radius of the curve and give
it sufficient super elevation but this would be costly and could involve
expropriation of land.
The only other possibility is to reduce the speed to match the radius
and the cross slope. In this case the speed should be reduced to 60km/h.
Physical means are necessary to obtain this. As humps are probably too
abrupt for this type of road a set of speed cameras could be used instead.
Rumble strips could also be considered but they do not seem to be
sufficiently efficient in Turkey and they wear out quickly.
RECOMMENDATIONS
Pre-warning signs of the speed limit and the curve should be
installed. They should be highly reflective and preferably have a
fluorescent backing board.
In the curve single chevron signs should be placed at shortdistance along the entire curve.
It is also recommended to make no overtaking in the curve bysigns and full lane markings supplemented with acoustic lines onboth sides.
RECOMMENDATIONS
It is assumed that 16 of the accidents will be affected by
changing the speed in the curve. We can expect an effect of
about 60% on injury accidents. Taking the regression effect
into consideration the expected saving in injury accidents
will be 8.0 accidents.
The total estimated effect is a reduction of 2 injury
accidents per year.
RESULTS
Background
Mevlana Street is considered the central street of the city centre of Konya. Itis lined with historical buildings of great importance.
Today the street carries vehicle traffic in two lanes in each direction.
Pedestrian traffic is very dense with demands for crossing all along thelength of the street. This has led to very high accident numbers. 115accidents were registered in a five-year period. Given that the length of thestreet is only 780m the rate of accidents is 30 injury accidents per km peryear.
A project has now been initiated for establishing a bi-directional tram line inthe middle of the street. Construction is ongoing and is scheduled to finishin the middle of 2015.
The intension is to keep two lanes for vehicle traffic by allowing car driversto use the tram lanes except at the station
Black Spot-Mevlana Street Audit Challenges
ObservationIn cities around the world the trend is to make city centres more liveable by reducing car traffic and increasing space for pedestrians and cyclists. This can be combined with good public transport for example by letting trams run in pedestrian streets as the example from Amsterdam in the picture below.
Black Spot-Mevlana Street Audit Challenges
It is strongly recommended to consider such a solution for Mevlana Street. Experience from other cities having adapted such a solution shows very positive effects on liveability, turnover of shops along the street and most importantly a significant improvement in road safety. The project opens for a unique opportunity for Konya to upgrade one of its most important historical areas. For example the Kayali Park and the square in front of the ŞerafettinMosque could be joined in a unique city space.If this is not feasible, vehicle traffic should be limited to one lane in each direction, or even better one lane in only one direction. Raised pedestrian crossings placed at every 80-100m should secure that vehicle speeds are kept below 30km/h.It cannot be recommended to let vehicles use the tram lanes. The give-way rules between trams and vehicles will be unclear and drivers may erroneously drive into the station area. Also, allowing driving in the tram line will deteriorate the respect of the tram lanes in other parts of the city.Furthermore, keeping two vehicle lanes in each direction opens for overtaking and with no speed reducing measures will probably lead to the same high accident rates as today.
Black Spot-Mevlana Street Audit Challenges