field excursion – the changes of old sendai

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Field excursion – The changes of old Sendai City Saturday, 20 April 2013

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Page 1: Field excursion – the changes of old sendai

Field excursion – The changes of old Sendai City Saturday, 20 April 2013

Page 2: Field excursion – the changes of old sendai

Field excursion map (Old Sendai City)

GIS : Fatwa Ramdani, Tohoku University, 2013

Page 3: Field excursion – the changes of old sendai

Modern administrative area

GIS : Fatwa Ramdani, Tohoku University, 2013

Page 4: Field excursion – the changes of old sendai

The main cross road in the ancient time

Page 5: Field excursion – the changes of old sendai

The changes of population

統計年月日 (A)

仙台市の 人口(人)

(A') 現・仙台市域 の人口(人)

(B) 仙台圏の 人口(人)

(C) 宮城県の 人口(人)

A/A' (%)

A/B (%)

A'/B (%)

B/C (%)

A/C (%)

1920年(大正9年) 118,984 190,013 320,770 961,768 62.6 37.1 59.2 33.4 12.4

1925年(大正14年) 142,894 221,709 364,002 1,044,036 64.5 39.3 60.9 34.9 13.7

1930年(昭和5年) 190,180 252,017 409,351 1,142,784 75.5 46.5 61.6 35.8 16.6

1935年(昭和10年) 219,547 278,821 450,591 1,234,801 78.7 48.7 61.9 36.5 17.8

1940年(昭和15年) 223,630 284,132 465,094 1,271,238 78.7 48.1 61.1 36.6 17.6

1947年(昭和22年) 293,816 331,570 563,727 1,566,831 88.6 52.1 58.8 36.0 18.8

1950年(昭和25年) 341,685 380,217 623,833 1,663,442 89.9 54.8 60.9 37.5 20.5

1955年(昭和30年) 375,844 414,775 669,422 1,727,065 90.6 56.1 62.0 38.8 21.8

1960年(昭和35年) 425,272 459,876 719,550 1,743,195 92.5 59.1 63.9 41.3 24.4

1965年(昭和40年) 480,925 520,059 784,615 1,753,126 92.5 61.3 66.3 44.8 27.4

1970年(昭和45年) 545,065 598,950 881,306 1,819,223 91.0 61.8 68.0 48.4 30.0

1975年(昭和50年) 615,473 709,326 1,018,375 1,955,267 86.8 60.4 69.7 52.1 31.5

1980年(昭和55年) 664,868 792,036 1,126,742 2,082,320 83.9 59.0 70.3 54.1 31.9

1985年(昭和60年) 700,254 857,335 1,209,050 2,176,295 81.7 57.9 70.9 55.6 32.2

1990年(平成2年) 918,398 918,398 1,292,282 2,248,558 100.0 71.1 71.1 57.5 40.8

1995年(平成7年) 971,297 971,297 1,381,877 2,328,739 100.0 70.3 70.3 59.3 41.7

2000年(平成12年) 1,008,130 1,008,130 1,437,181 2,365,320 100.0 70.1 70.1 60.8 42.6

2005年(平成17年) 1,025,098 1,025,098 1,463,279 2,360,218 100.0 70.1 70.1 62.0 43.4

2010年(平成22年) 1,045,986 1,045,986 1,490,098 2,348,165 100.0 70.2 70.2 63.5 44.5

2012年12月1日 (推計人口)

1,063,024 1,063,024 1,502,358 2,326,957 100.0 70.8 70.8 64.6 45.7

http://ja.wikipedia.org/wiki/仙台市

Page 6: Field excursion – the changes of old sendai

Sendai Subway Tozai Line (仙台市営地下鉄東西線)

http://ja.wikipedia.org/wiki/

Page 7: Field excursion – the changes of old sendai

Poor transport condition

Miyamoto et al, 2010

Page 8: Field excursion – the changes of old sendai

Sendai after the 1945 air raid

http://ja.wikipedia.org/wiki/仙台市

Page 9: Field excursion – the changes of old sendai

Land use changes

Page 10: Field excursion – the changes of old sendai

Land use system?

Page 11: Field excursion – the changes of old sendai

Nagamachi-rifu fault • Reverse fault

• Length: ~20 km

• Slip rate: 0.5-0.7m/1000 y

• Expected M: 7.0

Source: Ito et al, 2003

Page 12: Field excursion – the changes of old sendai

GIS : Fatwa Ramdani, Tohoku University, 2013

Dain

en

jiyama fau

lt

Page 13: Field excursion – the changes of old sendai

Earthquake history

In Miyagi a M8.2 earthquake occurred in 1793 nearby seas, and a series of M7.4 and above earthquakes followed this quake until 1978. The average interval between these quakes was about 37 years

GIS : Fatwa Ramdani, Tohoku University, 2013

Earthquake data: USGS Earthquake Database

Page 14: Field excursion – the changes of old sendai

Fluvial system

Page 15: Field excursion – the changes of old sendai

Water control system • Water control system of many

important river systems including Hirose River, the improvement and development of minor rivers to protect from suffered serious damage from floods.

• Water control promote the preservation and restoration of precious waterside areas such as?

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仙台

19

72

Remote sensing: Fatwa Ramdani, Tohoku University, 2013

Page 17: Field excursion – the changes of old sendai

仙台

20

13

Remote sensing: Fatwa Ramdani, Tohoku University, 2013

Page 18: Field excursion – the changes of old sendai

Sendai station 2nd main building early Showa era

http://ja.wikipedia.org/wiki/

Page 19: Field excursion – the changes of old sendai

仙台 Urban planning - protect

lives from a tsunami

Source: Post-Disaster Reconstruction Division of Sendai City

Page 20: Field excursion – the changes of old sendai

仙台 Urban planning – reconstruction zone

Source: Post-Disaster Reconstruction Division of Sendai City

Page 21: Field excursion – the changes of old sendai

仙台 2030

Miyamoto et al, 2010

仙台 City structure: consolidated urban areas on transit corridors

Page 22: Field excursion – the changes of old sendai

Lessons learned today?

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