12/10/2007 1900’s: Vancouver’s first designated commercial zone 1930’s: light industries and warehouses 1970’s: de -industrialized; became an office/commercial town Tracing the path of development of Yaletown after Expo86 1986: Expo86 Geography 376 Project 1987: a large portion sold to Concord Pacific; Kelly S Liang rapid developments began 2006: construction of Canada Line started Find a pattern of gentrification Explore the possibility to combine change in land use and property value Examine the different factors to gentrification and redevelopment ◦ Zoning ◦ History ◦ Immigration ◦ Etc. Nelson, Seymour, Beach Crescent and Marinaside Crescent Defined in Yaletown, a walking tour through history Focus on the older warehouse streets 1
12/10/2007 From the database ◦ Geography files e.g. land use, roads, etc. ◦ Census data (1986)/2001 Digitized materials ◦ Ariel photos from GIC 1984/2004 ◦ On-screen digitization BC Assessment ◦ Land use ◦ Property values 1986/2007 Collect data To determine land use in 1984 from various data sources ◦ BC Assessment microfiche Create a polygon shapefile contains Act Use, Plan #, assessment components all of the buildings Census data: ◦ Ariel photo join, export, digitization Input the values explore, etc. of each building using keyboard Gentrification ratio analysis Redevelopment Regression Index model results To determine which addresses are together in Roll Number r = 029-138-64 64-93 93-0000 0000 one building ◦ BC Assessment 2007: roll #, guide maps 1986: assessment style, address, aerial photo ◦ Survey Roll number address 2
12/10/2007 Microfiche 2007 171~189 Microfiche 2007 67~69 5 x 13 x 12 x 21 ◦ more than16000 entries ◦ 2-week-long process ◦ Predictably many errors Gentrification ◦ Ratio as opposed to increase ◦ Makes the number more significant ◦ Simple vs. adjusted Simple gentrification ratio = property value 2007 / property value 1986 Adjusted gentrification ratio = (property value 2007 / property value 1986) / average inflation in property value of Vancouver Provides a comparison to the rest of the city Keeps the original ratios Combined development indicator Regression model ◦ Adjust gentrification ratio / redevelopment index ◦ To examine the correlation between proximity to water and property price ◦ To find a way integrate change of land use and increase in property value Other factors: history, zoning policies etc. Centroid instead of polygon ◦ An attempt to solve the MAUP problem ◦ Tools in GIS require data to be in points 3
12/10/2007 Census data ◦ Explore ◦ Clip ◦ Join / relate ◦ Field Calculation ◦ Normalization ◦ Etc. 4
12/10/2007 Overall idea ◦ Gentrification should be measured with change in land use? ◦ Redevelopment indicator: lack of rationale ◦ Gentrification= both commercial and residential Jack Cockwell @ BC Assessment Dr. David Ley Geography project or an example of GIGO? ◦ Absence of reliable data ◦ Calculation errors ◦ BC Assessment: too many changes 5
12/10/2007 Broader area Explored the possibility to combine change of land use and increase in property value Incorporate more demographic components Overall gentrification is present throughout Separate commercial and residential the area, but more dramatic in the land Run a different redevelopment index bought by Concord Regression with factors other than the one A strong relation between gentrification and examined in this project ethnic diversification Census 2006 Many improvements can be made to the project, both ideological and practical 6
Recommend
More recommend