Chiba's Beltway: Impact And Future Directions.pdf

- Chiba Prefecture's Regional Activation using the Central Loop Road (Ken-O Expressway):
- Background: The Ken-O Expressway, a key part of the 3-loop, 9-radial road network project, is expected to fully open by 2020, connecting major cities like Tokyo, Tsukuba, Kawagoe, Hachiōji, and Yokohama directly with Chiba Prefecture.
- Tokyo Bay Aqua Line (TBA): Opened in 1997, TBA connects Chiba and Kanagawa prefectures, significantly reducing travel time between them. Its toll was reduced in 2009, further boosting usage.

- Ken-O Expressway & TBA's Chiba Prefecture Internal Sections:
- Ken-O Expressway: Total length is about 300 km, with 80% completed (as of June 2016). Chiba's section (Woodmore JCT to Godai JCT) is about 95 km, with around 80% completed.
- TBA: Total length is 15.1 km, fully opened in 1997. Its toll was reduced in 2009, leading to a significant increase in usage.

- Impact of Ken-O Expressway & TBA on Chiba Prefecture:
- Economic Impact: TBA's toll reduction led to a 2.1x increase in daily traffic (2009-2015), contributing to a 1.3x increase in economic impact (¥327 billion in 2015, up from ¥249 billion in 2011).
- Population: Chiba's population increased by 3.9% (2008-2016), with notable growth in cities near TBA, such as Woodmore (9.3% increase). However, areas outside the Ken-O Expressway's loop experienced a 7.7% decrease in population.
- Business & Tourism: The roads' improvements have led to increased business and tourism, with more companies establishing themselves in Chiba Prefecture.