Category: urban complexity

urban complexity

Hierarchy of Japanese Streets – Sorakuen Garden (相楽園)

The area southwest of Kitano-cho (the western halves of 中山手通 & 山本通) is notable for hosting many educational institutions: St Michael Nursery, Kobe Kakyo Kindergarten, Kobe Elementary School, Shinko High School, Kobe Chinese School, and Kobe Yamate University.  How safe are the streets for students walking to school? As described previously, streets in Japan can be analysed hierarchically, and classified on a five rank scale.  The streets in this area occupy only … Continue reading Hierarchy of Japanese Streets – Sorakuen Garden (相楽園)

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urban complexity

Hierarchy of Japanese Streets – Illustrated

Pedestrian movement paths in Japanese cities can be decomposed hierarchically, proceeding from the narrowest residential laneways to the busiest shopping streets (near rail stations). – As described previously, the highest levels of the pedestrian hierarchy are completely separate from the vehicular network. – The following illustration shows the structure of these streets near Sannomiya station dark green: subway tunnels light green: shopping arcades blue: nightlife alleys peach: … Continue reading Hierarchy of Japanese Streets – Illustrated

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urban complexity

Hierarchy of Japanese Streets

The transportation structure of Japanese cities can be decomposed into pedestrian and vehicular networks.  In some places they run side-by-side, in other places they overlap (woonerf), but for the most part, they are completely separate. Both of these networks are hierarchical in form: Hierarchy of Driving 1. Woonerfs – slow and very narrow streets where people and cars mix. 2. Narrow Streets – streets just wide enough for a … Continue reading Hierarchy of Japanese Streets

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urban complexity

諸駅網（しょ えき もう）

同名異駅（それよりも連結の諸駅）が複数集まれているの現象は日本では珍しくない。それどころか、同名・連結の諸駅は日本の特徴である。 「三宮駅」って、いったい何を示しているか。「三宮」と言うの駅は、６つもあるよ。 西神・山手線の「三宮」 阪急神戸線の「神戸三宮」 JR神戸線の「三ノ宮」 ポートライナーの「三宮」 阪神本線の「神戸三宮」 海岸線の「三宮・花時計前」 特定の一つの駅ではなく、その連結領域を示したいの場合、いかにはっきり区別できるか。「諸駅網」と言うの用語を提案する。話し言葉で「もろもろ えき の あみ」と言います。 諸駅網の代表的な例： 三宮 梅田 渋谷 新宿 池袋     Continue reading 諸駅網（しょ えき もう）

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urban complexity

Fractal Order: Organic Cities vs Mechanical Cities

Fractal-like networks effectively endow life with an additional fourth spatial dimension. This is the origin of quarter-power scaling that is so pervasive in biology. Organisms have evolved hierarchical branching networks that terminate in size-invariant units, such as capillaries […] Natural selection has tended to maximize both metabolic capacity, by maximizing the scaling of exchange surface areas, and internal efficiency, by minimizing the scaling of transport distances … Continue reading Fractal Order: Organic Cities vs Mechanical Cities

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