Airspace Utilization (3-D ROW)

The Hanshin Expressway network is running through the Kansai metropolitan region with a high population density. Linear infrastructure development (e.g., rail roads, toll roads) often bisects urban communities. Such bisection would certainly undermine the livelihood of and economic activities in urban communities. Airspace utilization gives an effective solution such as prevention of urban communities from being bisected, minimization of the negative impact on involuntary resettlement, and harmonization between urban redevelopment and urban transportation development.

As can be seen in the examples of Semba Viaduct on #13 Higashi-Osaka Route which is running on the commercial building and the Umeda off-ramp on #11 Ikeda Route which penetrates a building structure, we have several showcases that effectively utilize urban airspace by establishing three-dimensional right-of-way (3-D ROW*) with sectional superficies.

Umeda Off-Ramp
Semba Viaduct

The 3-D ROW legal framework, established in 1998, has contributed to effective solutions to reallocate urban space between urban redevelopment and urban transportation projects. We will promote a legal framework for the effective solution to harmonize an urban highway network with urban communities with highly dense areas; thereby, contributing to urban revitalization.

*3-D ROW is a space located above, at, or below the road's established gridline, lying within the approved airspace limits.