綜合統整歸納ITS知識產出文獻，遴選出重要學者後，本研究最後建構我國ITS知識產出影響力之評鑑指標，以AHP專家問卷定義指標權重值並代入實際數值計算進行客觀排序，並示範性繪製ATMS領域學術群聚知識圖譜呈現該領域學術群聚分布現況。本研究實證分析程序可供我國其他社會管理科學領域借鏡，彙整ITS知識產出資料可供我國相關產官學相關研究人員作為參考依據。 The academic literatures have been transformed in the form of paper into electronic one due to digital life with Internet nowadays which can overcome space obstacles of knowledge expansions. Therefore electronic database on the web are one of powerful resources for researchers. However, there are few studies on knowledge mapping in the field of transportation science in Taiwan. This study aims at providing knowledge maps of ITS and quantifying ITS knowledge outputs with clusters by subjects, institutions and authors in Taiwan.
The empirical study is conducted based on English ITS database on the web. Global ITS knowledge maps are drawn by using CiteSpace software to demonstrate co-citation networks which nodes include countries, authors and keywords. The same approach is applied to domestic ITS knowledge maps. Because there are no electronic database for ITS in Taiwan, manual screening of ITS documents is inevitable and ITS knowledge maps are drawn by using Ucinet software in order to demonstrate ITS knowledge outputs with clusters by subjects, institutions and authors in Taiwan.
The results of the empirical study show that research developments of ITS are very promising worldwide. CiteSpace is proven to be a good tool for demonstrating ITS knowledge maps with clusters by subjects, institutions and authors. Most of ITS knowledge outputs focus on ATMS, and then on ATIS. Six universities such as National Cheng Kung University, National Taiwan University, National Chiao Tung University, Tamkang University, Feng Chia University, and Chung Hua University are identified to be prominent institutions of ITS knowledge outputs in Taiwan. Especially, most of ITS knowledge outputs are ATMS, while outputs in CVOS and AVCSS are also found in National Chiao Tung University and ChungHwa University.
The ITS knowledge outputs with clusters by authors are finally summarized to assess their research performance by using AHP. The ranking results and corresponding knowledge maps provide an overview of current performance status of ITS scholars in different ITS service areas in Taiwan. The approach in this study can be adapted to other disciplines with similar processes. The manually summarized ITS database can also be regarded as references for those researchers who need academic ITS developments from 1990 to 2010.
