چكيده فارسي :
Abstract
Maintenance planning plays a great role in rail roads .It not only prevents
the costly reconstruction of these roads, but it also minimizes the death tolls
caused by derailment through the increases of passenger as well as goods
carriage safety coefficient.
According to studies conducted in some developed countries such as the
United States and Italy, applying new strategies of maintenance as a part of
comprehensive rail management systems reduced maintenance costs up to
1.5 times. This issue has been received little attention in Iran. This paper
aims at finding an optimized approach adapted to the present situation of
Iran railroads through the investigation of the modern approaches of
maintenance employed throughout the world.
To achieve this aim, firstly the whole network is studied to know its
features and rail road condition data is collected and secondly a condition
index will be developed to assess the condition of rail roads and appropriate
models applied .Then, maintenance models are applied including the cost
associated with each treatment and improvement corresponding to each
maintenance action. Finally, life cycle cost analysis is performed to come
up with a comprehensive maintenance plan indicating which section of
railroads when should be maintained and what maintenance actions should
be deployed.
Through comparison of a conventional approach being used at present with
the proposed model of this study, it will be shown that the rail road
maintenance costs decrease considerably.
Keywords:,
