eedb29fad1f4c5028264511d5a87a0e9.ppt
- Количество слайдов: 43
History & Demographic Structure of Phila. Mapping Angles Doing Justice
Sections: w w w Philadelphia Population: Statewide Historical Context w Choropleth maps Philadelphia, Pittsburgh, and nearby w Time trend Philly itself: w Spatial History w Map choices Law Behaving 1920 s Delinquency Data Doing Justice
Census HQ in Maryland United States Census w w w U. S. Constitution w Requires census of population w Every ten years w Used for redistricting House of Representatives w 1790 -2000 Methods changed over years Can use Census Figures for Historical Trends http: //www. census. gov/main/www/aboutus. html Doing Justice
Pennsylvania Counties w Pennsylvania Counties Pittsburgh is within Allegheny County Doing Justice
History of Pennsylvania Population by County Using Maps w Legend w How many groups? w What are ranges within each group? w Map type: choropleth map w w w “shows numerical data … for a group of regions by (1) grouping the data into classes, and (2) shading each class on the map. ” n n Doing Justice Prentice Hall. “Making maps with GIS. ” http: //wps. prenhall. com/esm_clarke_gsgis_4/0, 7300, 473320 -, 00. html
1790 Population By County Doing Justice
1850 Population By County Doing Justice Note legend change
1900 Population By County Doing Justice Note legend change again
1950 Population By County Doing Justice
2000 Population By County Doing Justice
Philadelphia: more detail over time w w w Line charts X Axis (horizontal): organizing variable (time) Y axis (vertical): variable being measured (population) Doing Justice
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30 19 084 , 1 dy ea t S Doing Justice ow gr th
Peak population Doing Justice
Sources of growth? Doing Justice
Sources of growth? w w w Immigration w Foreign w Domestic Growth of Jobs w Manufacturing w Commerce (ship, railroad) Incorporation w Surrounding towns incorporated (1854) Doing Justice
Compared to Pittsburgh (Allegheny Co. )? Doing Justice
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When did Pittsburgh’s Steady Growth Begin? Doing Justice
1880 Doing Justice
w Did Pittsburgh every reach 2 million? Doing Justice
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w From 1880 to 1930, where Philly and Pittsburgh adding about the same number of people every year? Doing Justice
Since the Two lines Are PARALLEL Over time, We will say yes Doing Justice
w What was happening in Philadelphia’s two adjoining counties to the west? w Delaware w Montgomery? Doing Justice
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As late as 1930, The population in each Was only about _____ Doing Justice
Sections: w w Philadelphia Population: Statewide Historical Context w Choropleth maps Philadelphia, Pittsburgh, and nearby w Time trend Philly itself: History Map and demographic data within Philly w Choices w Modifiable areal unit problem Doing Justice
Philadelphia 1681 Small port city on Delaware River Doing Justice
The Old Commercial Center? w w w Hard to pinpoint Approximate: Customs house would be nearby w Foreign vessels Doing Justice
Carpenters Hall, Custom’s House 1801 -1817 Between. 3 rd, 4 th below Chestnut St. Doing Justice
Lower Dock Area X= Carpenter Hall Circle= Society Hill, Olde City Doing Justice x
Over time, the harbor spread Both to the north and south Doing Justice
As it spread, warehouses And canneries And cheap housing for Immigrants working in harbor Or related industries grew up Over time became substandard, Increasingly crowded. Often, only housing affordable for Bottom rung workers Doing Justice
Over time, housing Expands outward, Back from harbor; Along major routes, Horse drawn trolley, Then trolley Newer housing more $ As housing ages, it Gets cheaper Doing Justice
Same time, Downtown expanding Businesses taking Over Poor Residential districts Downtown Expands to Meet Increasing Population to be Served In the city and beyond Doing Justice
because …. Different types of people live in different places Ebenezer Maxwell Mansion, Chestnut Hill Doing Justice Vacant Houses, West Philadelphia
Social Space maps onto physical space w 1930 Status Differences across Election wards w Variable: Median Rent from 1930 Census 4 groups 11 wards each DARK = HI RENT w w w LIGHT = LOW RENT Doing Justice
PBS News. Hour 10/2/202 w w http: //www. pbs. org/newshour/bb/entertainment/julydec 02/hwl_10 -2. html# Mayor Street’s Neighborhood Transformation Initiative Doing Justice


