総ページ数

P11

ブックの説明

さまざまな時間地図とその特徴
ーユーラシア大陸鉄道網を対象として一
Several Time Maps and their Features
-Focused on Railway Networks in Eurasia Continent-

古藤 浩
KOTOH Hiroshi

In this study, I show several time maps using new concepts,
and discuss their usefulness. For showing examples of time
maps, I pick up the times required by railways of the Eurasia
Continent.
As usual, For malking time maps, the multi-dimensional
scaling method was applyed, which was proposed by Torgerson
1952.However,this method has two problems.One is that, we
can hardly understand the true times required from the time
map, and the other is that the topological structure is often
broken in the time map by that method, hence we sometimes
mislead the time map. I focus on the former problem and
propose new time maps.
I consider time maps based on the multi-dimensional
scaling method. Then, I show two new ideas of time maps
which partially indicate exact times required (between several
cities). These time maps are worth using because the precision
of them are as not being inferior compared with the time map
using the multi-dimensional scaling method.
Futhennore, I show simple shape time maps which are one
dimension type, elliptic type, and 8 character type. These time
maps are valid for evaluating the transeportation network and
effect of new railways.

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