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ing checklist was developed to facilitate enforcement, which and eastward to I-95. This corridor was determined to be the
appears to have paid off. There have been no further reports most promising BBS project. Buses operating on this corridor
of unauthorized vehicles using the shoulder or buses going would need to be fitted with transponders to use the express
faster than 25 mph. "sun pass" toll lanes. The BBS lanes would be continuous
over the length of the corridor in both directions of travel.
Initial implementation is anticipated for May or June 2006.
CHECKLIST
PROVISIONS FOR USE OF WIDENED EMERGENCY I-75/SR-826 Corridor
SHOULDER EASTBOUND DULLES AIRPORT
CONNECTOR ROAD
This BBS project would run between NW 186th Street (Miami
Who can use widened shoulder: Buses going to the West Falls Gardens Drive) and the Miramar Parkway. The distance is ap-
Church Metro Station. proximately 15 mi and the segment has about 10 interchanges
Location: Widened shoulder along eastbound Dulles Airport Con- (with an average distance between interchanges of 1.5 mi).
nector Road, from east of the Magarity Road overpass to the ramp
leading to the West Falls Church Metro Station (a distance of ap- BBS shoulders would operate in both directions of travel when
proximately 1.3 miles). speeds drop to 35 mph or less. BBS would be easy to imple-
Days, Times, Conditions: Monday through Friday, during the ment in this corridor because shoulders are suitably designed.
hours posted on the signs installed along the shoulder,* only when
mainline speeds are less than 25 miles per hour. BBS signage would be the primary improvement required.
(* Note: As of 10/25/01 posted hours of operation are 48 p.m.)
Speed Limit on the shoulder is 25 miles per hour.
Primary Use of Shoulder is for disabled, emergency, and police SR-826 Corridor
vehicles. Periodic use of shoulder by buses to bypass congestion
is secondary to its primary use.
Safety First. Buses must have their headlights turned on when us- The SR-826 (Palmetto Expressway) BBS would extend from
ing the shoulder. Bus drivers must use extra care and keep a sharp SR-94 (Kendall Drive) to NW 67th Street (near I-75), a dis-
lookout for disabled or stopped vehicles on the shoulder, and for tance of 16 mi. The Palmetto Expressway BBS segment has
situations which may require vehicles responding to an emergency
to use the shoulder. Dispatchers will inform bus drivers whenever about 15 interchanges, which translates to an average of 1.1
the dispatchers are notified of such a situation. If the shoulder is mi between interchanges. BBS shoulders would be provided
occupied by a stopped vehicle, bus drivers shall not use the shoul- for both directions of travel.
der west (upstream) of stopped vehicle.
Shoulder Conditions. Buses may not use the shoulder when
snow accumulation has narrowed its available width.
I-95 Corridor
Feedback has been positive; "riders are thrilled at bus
schedule reliability." A BBS project between I-195 and I-395 is proposed to fill a gap
in the regional transit priority network. The distance of this
BBS segment would be approximately 1.6 mi. Shoulders would
CASE STUDY 3--MIAMI, FLORIDA be provided for authorized buses in both directions of travel.
The MiamiDade MPO is developing BBS projects for sev-
eral major corridors. This BBS planning involved the Florida SR-874 Corridor
DOT, MiamiDade Expressway Authority, MiamiDade
Transit, and the Turnpike Authority. The recommended BBS The BBS project would extend from SR-990 (Killian Parkway)
projects include: on SR-874 (Don Shula Expressway) to US-1 South Dixie
Highway on SR-878 (Snapper Creek Expressway). The
SR-874 BBS distance would be approximately 2.6 mi.
· SR-821/SR-836 Corridor
· I-75/SR-826 Corridor
· SR-826 Corridor The MPO completed a planning study for these BBS proj-
· I-95 Corridor ects in August 2005. The planning study addressed adequacy
· SR-874 Corridor. of the shoulders, level of emergency vehicle response service
using the shoulders, and transit services. Key features of the
plan are:
SR-821/SR-836 Corridor
· Shoulder features--Minimum 10 ft wide, and 12 ft
SR-821 is a portion of the Florida Turnpike, and the BBS seg- wide where truck volumes exceed 250 vehicles per
ment in southwest Miami is sometimes referred to as the hour. Cross slopes of 2% to 6%. Color or texture of
Homestead Extension of the Florida Turnpike. SR-836 is pavement to distinguish between traffic lanes.
commonly called the Dolphin Expressway. The SR-821/SR- · Usage rules--When speeds drop below 35 mph. Only
836 BBS project is an 18-mi-long facility with more than a authorized buses would be permitted and signage
dozen interchanges (with an average of 1.4 mi between inter- would be similar to that used in Minneapolis. This
changes). The BBS project would extend from SW 88th would include the on-ramp warning signs; "Watch for
Street (near Bird Road) on the Florida Turnpike to SR-836 Buses on Shoulder."
