7.6 MULTI-USE FACILITIES
There are three types of multi-use trails ; sidepaths , paved trails and unpaved trails . A sidepath is a multi-use facility that runs adjacent to a roadway . A trail is typically located within a linear greenway corridor which may be natural ( rivers , streams ) or manmade ( abandoned rail line or utility corridors ). Multi-use sidepaths and trails are designed to accommodate a variety of users including bicyclists , walkers , hikers , joggers , skaters , horseback riders , and those confined to wheelchairs .
Multi-use sidepaths and trails are are an important recreational amenity for communities . They provide connections to neighborhoods , schools , parks , and other community landmarks . Sidepaths and paved multi-use trails are generally located in or near urbanized areas . Unpaved multi – use trails are generally located in rural areas and also provide access to environmentally sensitive areas .
This section also includes design guidelines related to trail heads which are typically located at the terminus of a trail corridor and at a place where large concentrations of trail users are expected , such as major parks , schools , commercial areas and / or neighborhoods . Also refer to the City of Arlington Design Criteria Manual , Chapter 4 , Section 4.7 , Protection and Restoration of Linear Park Land when designing multiuse trails .
Figure 7.61.1 . Example of a multi-use , multidirectional sidepath .
7.6.1 Multi-Use Sidepaths
Where space is limited to accommodate a separate bike lane and a sidewalk , a multi-use sidepath may be the best alternative to facilitate the safe movement of all users . To prevent conflicts with motorists , a multi-use sidepath is best located where corridors have fewer driveways and intersections , and is located within the right-of-way . It is also advantageous if the multi-use sidepath is part of a bicycle route system with other bicycle facilities , such as paved shoulders and / or marked bike lanes ( Figures 7.61.1 and 7.61.2 ).
Design Criteria :
• A two directional sidepath should have a minimum width of 10 feet with at least 2 feet graded shoulder area at both sides of path .
• In high use areas , provide a minimum 12- foot sidepath .
• A sidepath should have a minimum vertical clearance of 7 feet .
• A planted buffer of 3 to 5 feet ( 5 feet preferably ) between edge of path and back of curb or edge of street shall be provided .
• The sidepath should be paved asphaltic concrete or a concrete .
• Provide removal bollards at intersection or roads and multi-use side paths . Multi-use side paths often need some form of physical barrier at intersections to prevent unauthorized motor vehicles from using the facilities . Provisions can be made for a lockable , removable ( or reclining ) barrier post to permit entrance by authorized vehicles .
• When crossing a road , side paths shall cross at 90 degree angle ( Figure 7.61.3 ).
• At intersections , side paths shall provide connections to existing sidewalks ( Figure 7.61.4 ).
• When side paths cross an intersecting road , vehicular motorists are required to stop before the side path intersection ( Figure 7.61.6 ).
• Post or bollards should be setback beyond the clear zone on the crossing roadway or be a breakaway design . The post should be permanently reflectorized for nighttime
7-48 | Chapter 7 : Design Guidelines