Miller's work was absolutely critical.
And the deficiencies are pointed out in present researches, such as highway capacity, level - of - service, influence factor of road alignments, etc. from these, it has confirmed that the thesis should be studied from rational analysis, quantitative analysis of level - of - service, impact on capacity of road alignments, setting - up simulation model, etc. the high - accuracy gps dynamic data acquisition appearance is proposed to be used for the first time to carry on the experiment of overtaking on two - lane highways, and experiment scheme is designed according to the driver ' s perceive to judge each overtaking course. based on the experiment data, it can get two important parameters of acceptant gap ? the critical gap of overtakable time headway and returnable time headway through data processing, which can offer the strong support to the research of two - lane highway capacity with qualitative and quantitative analysis. besides, the experiment methods is provided to observe overtaking ratio and to measure the
Some of the industries that are now complaining so strongly about import competition have acquiesced to cost structures.
Identification of emergency shutdown systems and controls that are critical to maintaining safety in process industries
Manufacturing is on the foundation, one state modernization rest up on mightiness reliable advance manufacturing foundation, is " reliable modernization, secure modernization " ; of economic development possess. it is one importance field that set obtain employment incompatible ; it was not only high and new technology " s bearer, but its power also. it is important attribute and object in our country ' s industrializatoon, it is also driving force in urbanized. manufacturing production mode is confronted with graveness change, it is confronted with from " ford mode " transiting to " flexible mode ", from extensive management transiting to intensive farming, it is still confronted with advanced technology and powerful capital competition abroad after intered into wto ; it is backbone industries and dominant strength and primary revenue source industry in zhejiang economic development, actually zhejiang is becoming manufactured product critical industry export depot of inland, zhejiang manufacturing possess unique industrial organize form, created unique institution and culture, it has become theoretical investigation prototype of inland. this article handles active branch of modern economics - industrial economics, to investigation the importance industry in this representative region, in the hope of obtain beneficial research findings