A　Proposition　of　the　Taiwan　Transport　Communication　for　 ITS Protocol , PartⅡ-Transition from Taiwan Current Traffic Control Protocol to NTCIP , and the System Interconnection

NTCIP將會是發展ITS中重要的通訊協定，然其推展不可能一僦可成，主要是交通管理系統不可能全面停擺來做更新，況且更新需龐大經費與工期。因此採新系統逐步上線、舊系統次第淘汰是最可行的辦法。在此過度期間，新舊系統並行都可能長達數年之久。本研究即研究此番新舊系統之界接與資訊交換問題，尤以交通控制系統為例。文中首先分析國內目前採用的電腦化交通號誌通訊協定，並與NTCIP比較兩者之異同，再針對系統界接方案進行設計。資訊交換方面，本案開發出兩通訊協定間之轉換模組，主要是針對交通部87年所部頒的通訊協定與NTCIP間的訊息交換為主。文末並舉87年協定中的現場設備共用訊息為測試對象，在所建雛型交換系統中得到驗證。NTCIP shall play an important role in ITS deployment. Because traffic control couldn't be terminated for a while, and building a new system needs budget and time, a strategy of building a new system with moving the existing old system away through a step by step approach is the most possible way. Thus, in the transition period, the existing system should run with the new system concurrently. This study develops the inter-system connection and data interchange module, particular in with different protocols: NTCIP and ROC87-traffic control protocol. The module is validated via a computer network composed of a mimic old traffic control center with the ROC87 protocol, a mimic new traffic management center with the NTCIP protocol, and a roadside unit