Urban Renewal and Wang's House

　　If you are an architect for planning this land, you shall hope the planning land is regular. Once the planning land is non-regular, the structural engineer will be hard to design. In the Section 1.6 of Taiwan's Earthquake Code, the structure will be non-regular structure if the Wang's land isn't part of it. Hence, the structure must be analyzed by the structural dynamic analysis procedure, and it will bring many non-necessary problems compared with the normal design procedure. Although Japanese Gate Tower Building has become a tourist spot, but it is not a good learning objective for the other countries. Why? Both of building and bridge affect each other, so that they have to pay higher maintenance cost.

　　Whether the Legislative Yuan changes the Urban Renewal Act, there are always few people who don't agree the renewal planning. Besides, the most people don't know the renewal spirit, so that they oppose the relative renewal project. However, I think the real purpose of Urban Renewal Act is to DIVEST your LAND to share the other people. According to the Investigation Rule of Land Price, the land price is adopted by the real price from the surrounding area. You can obtain a reasonable land price and house price, but the price is the value before the land development has completed by the builders. The land value depends on which type of land purpose, and the builders holds the real power of the capital, development and planning. Of course, you don't have the capital, and you don't know how to develop and plan the land. Hence, you don't have the right to share the builders' efforts, so that you should accept the builders' reasonable conditions.

　　In Taiwan, the government hasn't strictly limited the area develop of urban planning, so that you can find the commercial firms in the residential areas. As everyone knows, the convenience stores are everywhere, 7-11, FamilyMart, … and so on, for examples. Hence, the 1st storey has the commercial value as a shop front, and it is different from the other storey. Besides, Taiwanese householders always occupancy the public land, by the railing, so that they has larger space than the other storey. According to the two main reasons, the householders of the 1st storey think they want to choose the 1st storey for the planning building. I think it is reasonable, but the building shouldn't provide 33 householders for the 1st storey. They can draw who can own the 1st storey, and it should be the only method.

　　Taiwan doesn't have enough land to develop its economy, and the government cannot always compromise with few people. Or, the city cannot continue its development. Of course, the government must divest the householders' land, and the Urban Renewal Act is just authorized the builders to develop the land freely. The objective of Urban Renewal Act is old houses, but new houses. Hence, the planning region doesn't include an apartment near it, but the builders have different treatment. If the builders want to obtain the land of the apartment, they will pay more money to obtain it. Why? The builder does not only buy the land, but also buy the house on the land. The main problem is the engineering cost. I propose some personal opinions, and I hope you can understand what the real problem is.

References

1. Construction and Planning Agency Minister of the Interor（2011）建築物耐震設計規範及解說，http://www.cpami.gov.tw/chinese/index.php?option=com_content&view=article&id=10471&catid=30&Itemid=100
2. Wikipedia, Gate Tower Building, http://en.wikipedia.org/wiki/Gate_Tower_Building
3. Law & Regulations Database（2003）都市更新條例，http://law.moj.gov.tw
4. Law & Regulations Database（2003）地價調查估計規則，http://law.moj.gov.tw
5. 張志祺（2012.03.30）文林苑事件／學生觀點：三方小錯造成悲劇，http://tw.news.yahoo.com/文林苑事件-學生觀點-三方小錯造成悲劇.html
6. 柯昱安（2012.03.31）強拆王家 郝龍斌：責任我扛，http://tw.news.yahoo.com/強拆王家-郝龍斌-責任我扛-051703887.html
7. 薛孟杰（2012.03.31）陳冲：要求內政部提修法，http://tw.news.yahoo.com/陳冲-要求內政部提修法-213000142.html
8. 程嘉文（2012.03.31）當年都更條例立法修法 都在防釘子戶，http://tw.news.yahoo.com/當年都更條例立法修法-都在防釘子戶-182300006.html

Numerical Integration and Limit

　　Recently, I pay attention to the numerical integration, and I find an simple approach to calculate the result. The engineering problem is to calculate the volume of detention pond after the runoff hydrograph has acquired. In Section 6.1 of "Handbook of Detention Facilities Planning", the volume of detention pond is calculated by the hydrograph method. Actually, the so-called hydrograph method is the numerical integration for the intersection area of two hydrographic curves.

　　I find the polynomial equations of the curves by the techniques of curve fitting, and then I calculate the numerical integration by the Simpson's rule. However, there exists a simple approach to calculate the area, and it is to calculate the area by many rectangle areas. If you use very small △x, you can get the result which is almost equal to the result of Simpson's rule. It's very easy to do this, and you can obtain the result by Microsoft EXCEL, for example.

　　Why? If you still remember Calculus, you shall review the limit concepts. The rectangle method has the same limit with the Simpson's rule, so that you can get very close result between the two methods. Actually, there are three methods which are Simpson's rule, Trapezoidal rule and Rectangle method. However, compared with the Simpson's rule, the Trapezoidal rule or Rectangle method is NOT efficient for obtaining an accurate result. Consequently, you have to calculate the result by the three methods, and then you can decide a good △x for these methods respectively. It's quite fun.

References

1. Water Resources Planning Institute, Water Resources Agency, Ministry of Economic Affairs（2006）Handbook of Detention Facilities Planning, http://www.wrap.gov.tw/
2. Wikipedia, Curve fitting, http://en.wikipedia.org/wiki/Curve_fitting
3. Wikipedia, Rectangle method, http://en.wikipedia.org/wiki/Rectangle_method
4. Wikipedia, Simpson's rule, http://en.wikipedia.org/wiki/Simpson's_rule
5. Wikipedia, Trapezoidal rule, http://en.wikipedia.org/wiki/Trapezoidal_rule

Which version of standard shall you use?

　　In order to request the minimum requirements, the people establish the standards in every professional field. However, the standard is continuing to update its content, so that it has published more than one version. When you need to choose one of them, which version of standard shall you use? My suggestion is you should use the newest version of standard.

　　Assume you prepare to do something, you should go to the governmental website to make sure whether your version is still newest version or not. And then, you can take this version as your working standard version, and you shall write it in your tendering, bidding or proposal. It's very important to follow the governmental standards, but it’s possible to follow the international standards if necessary.

　　In the real world, there are just few people who have the reading habit, and therefore they don't know whether the new version has been published or not. If the work has to find out the responsibilities, can you say "I didn’t know the new version had been published"? If you are working in specific field, you are assumed that you know the newest standard. Hence, you cannot say "I didn't know the new version had been published". I think that you must continue to update your news, so that you can deal with the newest problem.