The paperl presents the advantages of rolling transportation of portal crane and technical difficulty existed in whole process of rolling transportation.

Research on The Transportation System Of Wide and Heavy Plate s Roll-on-roll-off shipping;

Discussion on the Ro-Ro transport of dangerous goods in the Bohai Bay;

With the development of international containerized transport,the countries all over the world have begun to adopt ro-ro transport to organize the containerized transport,which gradually forms a new kind container roll transporting craft.

Concerning the technical difficulty existing in rolling transport of the entire portal crane,this paper specifies the design process of the rolling transport of portal crane and the factors which are to be considered in design process.

According to the fact of passenger & freight rolling transport between Shandong and Liaodong peninsula as well as the corresponding situations in Japan, this paper analyzes the existing problems in the two-peninsula rolling transport system in terms of ship age, voyage speed, operation efficiency and capability of carrying vehicle and passenger.

Concerning the technical difficulty existing in rolling transport of the entire portal crane, this paper specifies the design process of the rolling transport of portal crane and the factors which are to be considered in design process.

The rapidly growing of the national economy and the strategies of the western region development has of-fered increasingly market resources and opportunities to the ro-ro transportation on the Yangtze River from Yichang toChongqing.

With the rapid development of automobile industry in our country,An "Automobile Industry Corridor" has been formed in Yangtse River Basin,it greatly promotes the prosperity of Commercial automobile logistics market,and brings an unprecedented opportunity for the development of Commercial Automobile Ro-Ro transportation in Yangtse River.