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综合也是创新。地铁工程能否按期顺利开通，除了土建工程如期保质完成和运营管理的必要准备之外，关键是对庞大而繁杂的机电系统进行调试与联调。本期推出何其光的大作《广州地铁1号线的调试与联调》，是实践经验的结晶，具有可操作性与创新性。境内外多家地铁公司对本文予以期待和关注，本期全文刊出，以飨读者。
如何筹集数额巨大的建设资金，已成为发展城市轨道交通的一个瓶颈。宋孝鋆的《上海城市轨道交通的可持续发展》一文，就上海的“四分开”模式以投融资体制改革发表了高见，可供各地参考。
如何减振降噪，已成为城市轨道交通学界的热点之一。本期刊出练松良、刘卫星的《轨道垫层振动特性的实验研究》一文，提出使用弹性垫层可使振动能量降低60%，值得关注。
轻轨交通根据其运输特性，可用于大城市的次干线、中等城市的主干线以及风景城市的旅游线。本期刊出的张波、孙章的《大力发展现代化轻轨交通》一文在分析其运输特性、经济特性与技术特性的基础上阐述了有关轻轨技术进步的若干问题。可喜的是，湘潭电机有限公司、大连机车车辆厂已经分别为长春和大连制造出了新型的轻轨车辆。
在本期《特别报道》栏目中，报道了本刊新一届理事会、编委会上各位领导和专家的真知灼见以及对本刊的厚望。另一篇报道了中低速磁悬浮列车中试系统在长沙通过评审。该系统适用于城市轨道交通以及旅游线，由于实现了国产化，可降低造价。
Editor's Remarks
It has been accepted
that an integrative
work also needs original
idea. The key to ensure
the sucessful operation
of a metro project on
the schedule, is not
the high quality of
the track formation
or the necessary preparation
for the operational
management, but also
the regulation and coordination
of its huge and complicated
sub - systems. The article
of“Coordination and
intergrated test of
Guangzhou Metro Line
1”is a conclusion drawn
from practical experiences
with orduous working.
Some MTR companies,
both at home and abroad,
have noticed this report
with great interests,
beacuse of the workability
and creativeness of
the system. To quench
their thirst, we published
the article in this
issue.
One of the bottle
necks in the development
of urban mass transit
is how to raise
a huge amount of money
for the construction.“The
sustainable development
of Shanghai urban mass
transit”expounded some
brilliant views on the
model of“4 sperations”and
investment - financing
system, we recommend
this article to our
readers for your reference.
Another hot topic
in the circles of urban
rail transit is how
to reduce track vibration
and noise. In“Test and
research of the vibration
characteristic of the
track pad”,the author
argues that the adoption
of the elastic cushion
may decrease 60% of
the track vibration
energy to maximum. This
is something to be noticed.
Because of its special
features, urban rail
transit is an ideal
transportation means
for the branch lines
in the metropolis, for
the main artery lines
in a middle- sized city
or tourist line for
a city with beautiful
scenery.“Strive to develop
LRT in china”discusses
in details, some technical
problems in the light
rail transit system
on the analysis of its
transport features,
the economic and technical
characteristics. We
are happy to lean that,
new types of light rail
transit vehicles have
been manufactured for
Changchuan City and
Dalian City metros by
Xiangtan Electrical
Manufacturing Company
Ltd. and Dalian Locomotive
and Vehicle Manufacturing
Works respectively.
In the colomn of “Special
News Report”, readers
may catch the deep insight
views and experice the
sincere expectation
of the members of the
new Board of Urban Mass
Transit and the new
Editorial Board of UMT.
Readers could learn
form another piece of
news that the low speed
maglev vehicle interimt
test system has passed
the assessment in Changsha
City, which is completely
manufactured in China.
Because of its comparably
cheap price, the system
will be possibly adopted
for urban rail transit
or for tourist porpuse.“”
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