12/10/2007

1

Tracing the path of development of Yaletown after Expo86

Geography 376 Project

Kelly S Liang

1900’s: Vancouver’s first designated commercial zone

1930’s: light industries and warehouses

1970’s: de-industrialized; became anoffice/commercial town

1986: Expo86

1987: a large portion sold to Concord Pacific; 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

12/10/2007

2

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

data

digitization

analysis

results

Collect data from various sources Create a polygon

shapefile contains all of the buildings

Input the values of each building using keyboard

Census data: join, export, explore, etc.

Regression model

Redevelopment Index

Gentrification ratio

To determine land use in 1984◦ BC Assessment microfiche

Act Use, Plan #, assessment components

◦ Ariel photo

To determine which addresses are together in one building◦ BC Assessment

2007: roll #, guide maps

1986: assessment style, address, aerial photo

◦ Survey

addressRoll number

Roll Number = 029-138-64-93-0000

12/10/2007

3

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◦ Adjust gentrification ratio / redevelopment index

◦ To find a way integrate change of land use and increase in property value

Regression model◦ To examine the correlation between proximity to

water and property price

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

12/10/2007

4

Census data◦ Explore

◦ Clip

◦ Join / relate

◦ Field Calculation

◦ Normalization

◦ Etc.

12/10/2007

5

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

12/10/2007

6

Broader area

Incorporate more demographic components

Separate commercial and residential

Run a different redevelopment index

Regression with factors other than the one examined in this project

Census 2006

Explored the possibility to combine change of land use and increase in property value

Overall gentrification is present throughout the area, but more dramatic in the land bought by Concord

A strong relation between gentrification and ethnic diversification

Many improvements can be made to the project, both ideological and practical