Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Crash Severity Pattern of Motorcycle Crashes in Developing Country
  Context   Despite paying special attention to the motorcycle-involved crashes in the
safety research, little is known about their pattern and impacts in developing
countries. The widespread adoption of motorcycles in such regions in tandem
with the vulnerability of motorcyclists exacerbates the likelihood of severe
crashes. The main objective of this paper is to investigate the underlying
factors contributing to the severity of motorcycle-involved crashes through
employing crash data from March 2018 to March 2019 from Iran. Considering the
ordinal nature of three injury classes of property-damage-only (PDO), injury,
and fatal crashes in our data, an ordered logistic regression model is employed
to address the problem. The data statistics suggest that motorcycle is
responsible for 38% of injury and 15% of all fatal crashes in the dataset. The
results indicate that significant factors contributing to more severe crashes
include collision, road, temporal, and motorcycle rider characteristics. Among
all attributes, our model is most sensitive to the motorcycle-pedestrian
accident, which increases the probability of belonging a crash into injury and
fatal crashes by 0.289 and 0.019, respectively. Moreover, we discovered a
significant degree of correlation between young riders and riders without a
license. Finally, upon the insights obtained from the results, we propose
safety countermeasures, including 1) strict traffic rule enforcement upon
riders and pedestrians, 2) educational programs, and 3) road-specific
adjustment policies.

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The categories of this paper are: cond-mat
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The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
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The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
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The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: econ
27
The categories of this paper are: comp-gas