Urban Densification Strategy and Land Value in Tijuana,Baja California-The Opinion of Specialists

Specialists can provide opinions regarding the city and land value based on their specialized field.Professionals in these fields are identified as urban planners and valuators,who play a crucial role in the current dynamics of cities.They have a qualified opinion on city issues based on their professional practice in various areas of expertise.This opinion was obtained through the formulation and application of a questionnaire to specialists.Subsequently,the results were analyzed and graphically represented.In the discussion,several findings were found related to the relationship between land value and the urban densification policy established in the urban planning that governs the city of Tijuana,Baja California.The study investigated the behavior of the real estate market in the region and the establishment of a solid strategy toward densification.

The Multi-Scale Numerical Modeling System for Research on the Relationship between Urban Planning and Meteorological Environment

Considering the urban characteristics, a customized multi-scale numerical modeling system is established to simulate the urban meteorological environment. The system mainly involves three spatial scales: the urban scale, urban sub-domain scale, and single to few buildings scale. In it, different underlying surface types are employed, the building drag factor is used to replace its roughness in the influence on the urban wind field, the effects of building distribution, azimuth and screening of shortwave radiation are added, and the influence of anthropogenic heating is also taken into account. All the numerical tests indicate that the simulated results are reasonably in agreement with the observational data, so the system can be used to simulate the urban meteorological environment. Making use of it, the characteristics of the meteorological environment from the urban to urban sub-domain scales, even the among-buildings scale, can be recognized. As long as the urban planning scheme is given, the corresponding simulated results can be obtained so as to meet the need of optimizing urban planning.

Underground space planning in Helsinki

This paper gives insight into the use of underground space in Helsinki,Finland.The city has an underground master plan(UMP) for its whole municipal area,not only for certain parts of the city.Further,the decision-making history of the UMP is described step-by-step.Some examples of underground space use in other cities are also given.The focus of this paper is on the sustainability issues related to urban underground space use,including its contribution to an environmentally sustainable and aesthetically acceptable landscape,anticipated structural longevity and maintaining the opportunity for urban development by future generations.Underground planning enhances overall safety and economy efficiency.The need for underground space use in city areas has grown rapidly since the 21 st century;at the same time,the necessity to control construction work has also increased.The UMP of Helsinki reserves designated space for public and private utilities in various underground areas of bedrock over the long term.The plan also provides the framework for managing and controlling the city’s underground construction work and allows suitable locations to be allocated for underground facilities.Tampere,the third most populated city in Finland and the biggest inland city in the Nordic countries,is also a good example of a city that is taking steps to utilise underground resources.Oulu,the capital city of northern Finland,has also started to ‘go underground’.An example of the possibility to combine two cities by an 80-km subsea tunnel is also discussed.A new fixed link would generate huge potential for the capital areas of Finland and Estonia to become a real Helsinki-Tallinn twin city.

Development Trends of China's Urban Planning Work

Since the eighties, the development of China’s urban planning work has ev-er been keeping pace with the progression of China’s reform and opening to the outsideworld. Every high tide of reform and opening to the outside world has become the boom-ing period of city planning work development. After the southern investigation tourspeech of Mr Deng Xiaoping this year, again a new high tide of reform and opening to theoutside world has emerged in our country, our city planning work have also entered a newgolden stage. From the achievements of China’s city planning work in recent years, sever-al trends mentioned below are significant.

Ten Years of Urban Traffic Planning Development in China

Since China adopted the policy of reform and opening to the outside world, the ur-ban-traffic problem has become more and more severe with each passing day. With theconcerted efforts of the professionals from all over the country, and by introducing newtheory, applying new technologies and new methods and by preserving in continuouspractice and exploration, we have obtained gratifying experience and results in trying tosolve the problem. Following is a historical review of the work we have done in trying tofind the solutions to traffic problems. Meanwhile, the author also points out that in thenext ten years, the task of China’s urban traffic-planning is still very arduous and more ef-forts should be made in this respect to meet the needs of our economic development.

Economic Restructuring and the Further Development of Urban Planning

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Planning Policies Towards Shanghai's Rapid Urban Development

The central core of Shanghai is expanding rapidly. The industrial area in the outskirtsmapped out in the overall planning of 1959 has become part of the two wings of the cen-tral city in the overall planning of 1984. The satellite town of Minhang, together with Wuj-ing, Baoshan and the towns in the neighborhood, tends to be joined together with thecentral city. More than one thousand multi-storey residential buildings have been put upin the central city,60 percent of which are erected in the old distrlcts. This, again, turnsthe old districts into overpopulated areas. In order to control the population density ofthese old areas and to develop Pudong(on the east of Huangpu River). Shanghai will beexpanded to the eastern side of Huangpu River. The central city, thus, will become a beltof dense population with Huangpu River as its axis: and it will outgrow, in size and inpopulation, its limits set by the overall planning. In the next century, how will the structure of city planning change? How to readjustthe planning of regional functions. urban traffic systems and infrastructural facility sys-tems? How to control unsystematic development in the city and in the outskirts? How toremove some of the residents from the central city to Pudong? How to change HuangpuRiver into a city axis? The following article will hold a discussion on the above problems.