(Blue Diamond Road) Corridor Study - Regional Transportation ...

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6. SR-160 Corridor Improvement Plan RTC SR-160 Corridor Study No. Cross Street Bus Movement Recommended Configuration 3 Dean Martin Straight through TSP and, if possible, queuejumping lanes both EB and WB 4 Valley View Straight through Queue-jumping lanes and TSP both EB and WB 5 Hinson Street Straight through Queue-jumping lanes and TSP both EB and WB 6 Arville Straight through Queue-jumping lanes and TSP both EB and WB 7 Decatur Straight through on SR-160, as well as EB SR-160 to northbound Decatur and vice versa Queue-jumping lanes and TSP both EB and WB; left turn lane and TSP from EB SR-160 to NB Decatur 8 Lindell Straight through Queue-jumping lanes and TSP both EB and WB 9 Jones Straight through Queue-jumping lanes and TSP both EB and WB 10 Torrey Pines WB SR-160 to SB Torrey Pines and vice versa Transit-only left turn lane and TSP from WB SR-160 to SB Torrey Pines TSP for left turn from NB Rainbow to WB SR-160 11 Rainbow NB Rainbow to WB SR-160 and vice versa 12 Buffalo Straight through Queue-jumping lanes and TSP both EB and WB 13 Durango Straight through EB: queue-jumping lane and TSP; WB: queue-jumping lane, transit-only lane west of intersection until beyond P&R, and TSP The only non-signalized intersection on SR-160 which could cause delays to transit vehicles is at Hualapai Way, where westbound buses would turn south, across the eastbound lanes, to enter the Park & Ride facility. SR-160 will remain in a two-lane configuration for the immediate future, although Clark County’s current RTP calls for widening of the highway to four lanes between Mountain Springs and Ft. Apache Road by 2016 (Project #261), at which time the intersection may require signaling. There are no existing plans to widen Hualapai Way near SR-160. 6.4 OPTIMIZING MOVEMENT OF TRANSIT VEHICLES Various strategies can be implemented to expedite bus movement through signalized intersections and minimize delays. 6.4.1 Queue-Jumping Intersections Bus operation at many of the intersections shown in EXHIBIT 6- will simply be straight through, from east to west or vice versa. These intersections could implement queuejumping lanes and be equipped with TSP capabilities. A queue-jumping lane enables buses to “go to the head of the queue” at an intersection by use of a dedicated transit lane or right 6-4
6. SR-160 Corridor Improvement Plan RTC SR-160 Corridor Study turn lane approaching the intersection. The signal for this dedicated lane goes green several seconds prior to the signal for the general traffic lanes, enabling the bus to pass through the intersection ahead of other vehicles. There are two possible configurations for these intersections. As shown in EXHIBIT 6-3, the first has separate right-turn and queue-jumping lanes, which requires the bicycle and rightturn lanes to weave prior to the intersection. (This is not an uncommon configuration.) The second combines the right-turn and queue-jumping lanes, resulting in a narrower design; efficient signal timing can help ensure that the right turn lane will be clear of automobiles before the bus receives a green signal at the intersection. Both configurations fit within the 200-foot SR-160 corridor. The implementation of one option over the other would be decided on a case-by-case basis, and is generally predicated on the number of vehicles expected to be making right turns at the intersection. The AASHTO Park & Ride Guide states that an exclusive bus lane should be considered when right-turn volumes are greater than 400 vehicles per hour. 11 EXHIBIT 6-3: Possible Right-Turn / Queue-Jump Lane Configurations Separate right-turn and queue-jump lanes Combined right-turn and queue-jump lane BUS ONLY BUS ONLY These same lane configuration options could be used when there is a bus stop or a driveway into a Park & Ride at the far side of the intersection. Although the lane configuration would be the same, there would be no need for an early green signal since buses could enter a short transit-only lane on the far side of the intersection prior to entering the facility. 11 “Guide for Park & Ride Facilities”, American Association of State Highway and Transportation Officials, November 2004, p. 53 6-5
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State Route 160 (Blue Diamond Road)
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Table of Contents RTC SR-160 Corrid
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1. Executive Summary RTC SR-160 Cor
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2. Current Conditions of Study Area
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Page 35 and 36: 2. Current Conditions of Study Area
Page 43 and 44: 3. Overview of Transit Modes RTC SR
Page 59 and 60: 4. Evaluation Methodology RTC SR-16
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Page 63 and 64: 5. Alternative Development RTC SR-1
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Page 123 and 124: 8. Estimated System Costs RTC SR-16
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A. Aerial Photographs of Blue Diamo
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B. Candidate Park & Ride Site Data
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C. SR-160 Major Intersections RTC S
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D. RTC Policies and Procedures RTC
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