| Summary: | 碩士 === 國立臺灣大學 === 土木工程研究所 === 82 === Signalized Intersection,because of complex stream and high
conflict,is usually the main part of Traffic Safety Analysis
and Level of Service Evaluation. Traffic Safety Analysis can be
helpful to find concealed hazard and then to draw up proposals
to keep the public from danger. Moreover,Level of Service
Evaluation helps to see if road supply fit the demand of roar
users.It is an important issue for traffic safety study that
how to combine Traffic Safety Analysis with Level of Service
Evaluation, and to identify the role of Level of Safety Service
and to analyze traffic safety systematically. This study is
different from the Level of service based on the efficiency
view. apply the concept of Fuzzy Theory,it starts with the view
of safety to fit road users'' respose to the Level of Service
Evaluation,and,furthmore,to link safety,efficiency, and
environment together.Also,considering the characteristics of
weighting,it set a model for compound Level of Service.The aim
of this study is to give a new explanation to the definition of
Level of Service and to make the Level of Service evaluation
and the cut of Level more flexible.However,due to the limitof
time and labor,the model of Level of Service is still not ready
for Exposure. Therefore, the model of Exposure base and that of
Validation is still kept for continuous study. This study,
compounding Aggregate Accident Analysis, Disaggregate Accident
Analysis, Level of Service Evaluation Structure,Applied
Analysis of the Model of Evaluation,Estimate of Safety
Improvement Strategy and Establishment of Traffic Safety
Information System,sets a procedure of safety improvement
planning.By applying the model of Level of Service Evaluation
,the Level of Service is both quantified and more flexible, the
Interval of each Level is exchangeable,and the Method of Fuzzy
Cluster Analysis could verify the evaluation performance to be
the base of improving safety.
|
|---|
