zA Case of Utilizing Results

Realization of a Safe and Secure Society

Design Points of Bicycle SpaceKANEKO Masahiro, Head,HONDA Hajime, Senior Researcher,MINOSHIMA Osamu, Researcher
Advanced Road Design and Safety Division, Road Department(Key words) bicycle path, bicycle lane, intersection design

2. Outline of the “Design Points”
The Design Points hypothesizes simplified
intersection patterns to present design concepts andprecautions by bicycle path and bicycle lane, and byintersections of two arterial roads and intersections ofarterial roads with narrow back streets. At this stage,
few such improvements have been in Japan, andknowledge is inadequate, so priorities and selection
concepts for each pattern have not been included.
Their design and improvement will advance throughcoordination between road managers and traffic
managers, thoroughly accounting for the state of roads
and traffic conditions which differ at each location.
Figure 1 shows an example of a design point for anintersection with a narrow back street in a case where
the bicycle lane is provided along the arterial road.

· The car turning left travels on theleft䊶Ꮐ᛬⥄േゞ䈲੤Ꮕὐᚻ೨
edge before reaching the䈪䈲Ꮐ஥┵䈮ᴪ䈦䈩ㅢⴕ䇯
intersection.
䊶Ꮐ᛬⥄േゞ䈏⥄ォゞኾ↪
· The car turning left will travel inㅢⴕᏪ䉕ㅴⴕ䈚䈩䈒䉎䈱䈪the bicycle
lane, so safety must be቟ో䈱⏕଻䈏ᔅⷐ䇯
ensured.

· Thestructure demarcating䊶⚦ⴝ〝䈎䉌ᐙ✢㆏〝䈮วᵹ
betweenthe sidewalk and vehicle䈜䉎⥄േゞ䈎䉌⥄ォゞኾ↪
lane ㅢⴕᏪ䉕ㅢⴕ䈜䉎⥄ォゞ䉕is constructed to give goodⷞ⹺䈚䉇䈜䈇䉋䈉䇮ᱠ㆏䈫ゞ
visibility so that bicycles traveling㆏䉕඙↹䈜䉎Ꮏ૞‛䈲⷗ㅢ
on thebicycle lane can be easily䈚䈱䉋䈇᭴ㅧ䈫䈜䉎䇯
seen from cars entering the arterial
road from the narrow back street.

· The bicycle lane is clearly
indicatedby coloring etc.,䊶⥄ォゞኾ↪ㅢⴕᏪ䈲䇮੤Ꮕὐౝ䉅฽䉄䉦䊤䊷ൻ╬
includingat the䈮䉋䉍᣿⏕ൻ䇯intersection.

㕍㩷 䋺⥄ォゞኾ↪ㅢⴕᏪ
Blue:Bicycle lane· 䊶⚦ⴝ〝䈎䉌ᐙ✢㆏〝䈮วᵹThe corner cutoff should
ensurethat bicycles traveling on䈜䉎⥄േゞ䈎䉌ᱠ㆏䉕ㅢⴕ䈜
the䉎sidewalkcan⥄ォゞ䉕ⷞbe⹺easily䈚 䉇 䈜seen䈇䉋䈉䇮㓈ಾ䉍䈏⏕଻䈘䉏䉎䈖䈫䈏fromcars entering the arterialᦸ䉁䈚䈇䇯
roadfrom the narrow backstreet.

Figure 1. An Example of the “Design Points”
3. Application of the Results and Future Development
The “Design Points” which has been sent tomanagers of each model district and explanation
meetings have been held to publicize its contents.
Figure 2 shows an example of improvement
performed applying the “Design Points” in a modeldistrict.
࿑㧞 ᢛ஻੐଀㧔౓ᐶ⋵ዦፒᏒ㧕

Figure 2. Sample Provision(Amagasaki City in Hyogo Prefecture)
In the future, it will be revised as necessary toreflect new knowledge gained through improvements
in model districts.

Application of Research Results

1. Introduction
Cycling has flourished as a consequence of growing
concern with environmental problems and health. This
trend has also revealed problems with bicycles, suchas the soaring numbers of accidents involving cyclists
and pedestrians during the past ten years. The National
Police Agency and the Ministry of Land,
Infrastructure, Transport and Tourism have worked toensure bicycle space separated from pedistrians by, inJanuary 2008, designating a total of 98 districts
nationwide as bicycle space improvement modeldistricts.
The NILIM has supported improvements in thesemodel districts by inventorying concepts of the designof bicycle traveling space focused on intersection
points separately for bicycle paths and for bicycle
lanes and in compliance with existing laws, and hassummarized the results as Design Points of Bicycle
Space (below called, the “Design Points”).