ACE 2020-21 14th International Congress on Advances in Civil Engineering, İstanbul, Türkiye, 6 - 08 Eylül 2021, cilt.1, ss.1346-1353
Highway traffic accidents are
amongst the biggest social problems experienced in today’s world. Various stakeholders,
such as central and local governments, public institutions and organizations,
non-governmental organizations, academicians are working to reduce the number
and the severity of traffic accidents. For this purpose, new control methods
are being developed in addition to new technologies such as autonomous
vehicles.
Within the scope of this study,
the accidents in Istanbul in 2018 were examined using Qgis, an open source geographic
information system (GIS) software. After the spatial data related to the
accidents occurred were defined in the Qgis software, accident hotspots where
the number of accidents intensified were determined. By focusing on these
points a spatical analysis has been made by examining the types of accidents
and the factors affecting the at a micro level.
It can be said that various
factors such as traffic volume, speed, geometric features of the road, lighting
level, etc. are effective in the accidents that took place in Istanbul in 2018.
On the other hand, some factors that cannot be detected within the scope of the
study developed such as a temporary road work can also be found among the factors
of accidents.
As a result of the developed
study, the improvements that can be made at the accident hotspots in order to
reduce accidents are examined and presented as a suggestion.
Keywords: Traffic accident,
hotspots, spatial analysis, geographic information system, Istanbul.