Page 211 - Proceeding of Atrans Young Researcher's Forum 2019_Neat
P. 211

“Transportation for A Better Life:
                                                                              Smart Mobility for Now and Then”

                                                                                    23 August 2019, Bangkok, Thailand

                    These  images  illustrate  certain  general
             developments  in  land  cover  of  the  studied
             catchment  areas.  Basically,  several  patterns  of
             land cover in these areas experiences the similar
             trends  that  density  declines  gradually  from  the
             stations as the focal points. Since the route has not
             been used, the attractiveness of these stations can
             hardly  explain  this  phenomenon,  but  the
             attractiveness  of  the  route  itself  that  is  located
             along the main highway.
                                                                        Fig. 7 Roadway of Metro Line 1
                    The  images  also  indicate  a  high  rate  in             crosses District 2
             urban expanse taken place in the last 2 decades in   Source: http://cafef.vn/toan-canh-tuyen-metro-
             these  areas,  similar  to  the  general  trend  of   so-1-ben-thanh-suoi-tien-hon-2-ty-usd-sau-2300-
             urbanization in Ho Chi Minh City. With 9.6% in     ngay-xay-dung-20181227125343916.chn)
             difference between percentage of land covered for
             buildings  and  roads,  case  2  (catchment  area  of     However,  it is not seen in all cases this
             station  7)  is  seen  as  the  fastest in  urbanization,   growth in land cover. Specifically, built areas of
             compared  to  those  of  case 1  (3.3%) and  case 3   case 1 in 2014 was lower than those of 5 years
             (4.9%).                                            prior. This was due to land clearance in this period
                                                                to  prepare  for  a  new  project,  which  have  been
                    This  phenomenon  can  be  explained  by
             multi-factors. First, the pace of land coverage in   implemented some following years in Thu Thiem
             case 1 is lower than the other two because of its   that makes land coverage for buildings and road
                                                                networks increasing again. It also matches with a
             existing high density. Extracting the area for river,   finding of Question 2.1. The line chart in Fig. 8
             its  built areas already  accounted for  the  highest
             percentage  among  the  three  cases  (76.2%,      illustrates these trends.
             compared to 72.1% and 72%). It means that the
             new urban development and/or redevelopment of
             this catchment area focus mainly on the existing
             area which had a high density and was compacted
             already and undeveloped area along Saigon river
             (Thu Thiem). However, due to the complex of the
             project in Thu Thiem, many parts of this area have
             been  developed  as  planned,  which  makes  land
             coverage in this area is not as high as the other
             areas. Second, in comparison to Case 3, Case 2 is
             much  closer  to  the  city  center,  where  has  been   Fig. 8 Changes of percentage of the built areas
             highly invested in the last 2 decades. This area of   over the total areas of the studied catchment areas
             District 2 today is an emerging residential sector   in 2003-2019 (Y-axis: Percentage of land cover)
             that owns several types of  housing as shown in    Source: Authors, 2019
             Fig. 7.

                                                                5. Conclusion
                                                                       In  conclusion,  this  paper  defined  and
                                                                grouped  the  catchment  areas  of  the  stations  of
                                                                Metro Line 1 following Circular Buffer approach
                                                                and their features respectively. By analyzing the
                                                                change  in  population  density  since  2000s,  it  is
                                                                commonly seen a growth in number of residents in
                                                                these areas. From  multi-methods,  a transition in
                                                                land cover is also described with its patterns. In
                                                                brief, these areas tend to develop denser around its
                                                                stations, as well as, the land cover percentages for



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