The invention discloses a
road accident prediction system based on
big data, and relates to the technical field of
big data analysis and prediction, the
road accident prediction system comprises an acquisition module, a fusion module and a prediction module, the acquisition module obtains multi-
source data of
road accident prediction, transmits the multi-
source data to the fusion module, carries out space-
time alignment processing on the multi-
source data through a
processing unit, and carries out prediction on the multi-source data; generating feature vectors, transmitting the feature vectors to a prediction module, generating an
accident risk prediction result through a prediction unit according to the real-time input feature vectors, constructing a three-dimensional
data set by integrating multi-source data, establishing a unified coordinate
system by means of space-time grid division, and realizing data differential fusion, static parameter positioning according to road section ID, and
dynamic data space-time two-dimensional association. Historical accident space-time
backtracking matching is carried out, a
feature set with a space-time
label is generated, the problem that traditional data benchmarks are not uniform is solved, statistical features are extracted through multiple windows in the prediction stage, multi-factor
coupling is analyzed in combination with
risk assessment logic, prediction space-
time resolution and robustness are improved, and accurate safety management is supported.