Continuous Flow Hybrid Intersection Indian River Road and ...€¦ · Continuous Flow Hybrid...
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Continuous Flow Hybrid Intersection Indian River Road and Kempsville Road Improvements City of Virginia Beach Taha Ataya, P.E. Senior Project Manager Transportation Division July 12, 2012 UCI Annual Meeting
Transcript of Continuous Flow Hybrid Intersection Indian River Road and ...€¦ · Continuous Flow Hybrid...
Continuous Flow Hybrid Intersection Indian River Road and Kempsville
Road Improvements City of Virginia Beach
Taha Ataya, P.E.
Senior Project Manager Transportation Division
July 12, 2012
UCI Annual Meeting
Current Conditions
Most congested intersection in the City.
Access and maintenance issues.
105,000 Vehicles Per Day
Signalized Intersections - V/C Rank
-120%
-70%
-20%
30%
80%
1 7 13
19
25
31
37
43
49
55
61
67
73
79
85
91
97
103
109
115
121
127
133
139
145
151
157
163
169
175
181
187
193
199
205
211
217
223
229
235
241
247
253
259
265
271
277
283
289
295
301
307
313
319
325
331
337
343
Nee
ded
Cap
acity
E
xces
s C
apac
ity
Capacity of Signalized Intersections
Excess Capacity
Needed Capacity
Volume / Capacity = 1.0
Indian River at Lake James
Indian River at Centerville
Indian River at Kempsville
Volume / Capacity = 1.0
Indian River at Kempsville
Indian River Road-Kempsville Road
Balancing Needs
Three traditional options to address the problem: 1. Lane additions at grade. 2. Grade separated interchanges. 3. No build.
Or
Consider an innovative approach: 4. Non-traditional improvement.
Traditional Improvements – At Grade – Lane Additions
Large footprint.
Needs extensive Right of Way.
Expensive, and disruptive.
Estimated at $37 Million.
Traditional Improvements – Grade Separated – Interchanges
Large footprint.
Needs extensive Right of Way.
Eliminates access
Estimated at over $60 Million.
Traditional Improvements – No-Build Option
Does not address problems.
Does not meet future needs.
Stifles commerce.
Impacts quality of life.
Unacceptable congestion.
Hybrid design of two non-traditional solutions.
Minimize right of way and cost.
Maximize traffic flow.
Estimated $10.4 Million
Proposed Alternative – A Non-Traditional Improvement
Intersection Design – Typical Signal
Four typical phases: two through and two turns.
Each phase requires green time and a short clearance time.
Best to eliminate phases when possible.
X X
Median U-Turn on Indian River Road
To Make A Left From Indian River to Kempsville
Time Shared - Greater Green Time Available To Both Movements Simultaneously
Displaced Left Turn on Kempsville Road
To Make A Left From Kempsville to Indian River
Greater Green Time Available To Both
Movements Simultaneously
Moving Forward
Total estimated cost for the project is $10.4 million.
Project is funded with City and Federal Congestion Mitigation and Air Quality funds.
No other option provides the level of improvements for the cost.
Project Development Milestones
Phase Cost Begin End
Design $ 984,000 Ongoing Spring 2013
Right of way $ 3,500,000 Winter 2012 Spring 2014
Utility relocation $ 525,000 Spring 2014 Fall 2015
Construction $ 4,500,000 Fall 2015 Fall 2016
Street lighting $ 150,000 Spring 2016 Fall 2016
Contingencies $ 750,000 Spring 2013 Fall 2016
Total $ 10,409,000
Project Status
1. Approaching 60% Design.
2. Project is fully funded with CMAQ and City funds.
3. NEPA process is ongoing: Phase I ESA complete.
4. Citizen Information Meeting complete.
5. Design & Location meeting November 2012.
September
