VT�15 / Allen Martin Drive Intersection Scoping Study ALTERNATIVES PRESENTATION MEETING DECEMBER 19, 2016
Agenda • Study Area • Project Background • Existing Conditions • Identified Issues • Proposed Alternatives • Feedback and Discussion The Town would like to be prepared with an approved • Next Steps improvement plan to hold continued developments accountable for impacts 12/19/16 2 RSG
Project Background The Town of Essex, with assistance from the CCRPC, is conducting this scoping study to evaluate existing conditions at the intersection of Allen Martin Drive and VT315 (Jericho Road). Outcomes for this study: • Assessment of existing traffic and safety conditions • Consideration of public input over the course of the study • Development and evaluation of build alternatives: short, medium and long term • Preliminary cost estimates for future engineering, admin, and construction • Preferred alternatives for implementation, if warranted • A clear and concise report that documents this process 12/19/16 3 RSG
Project Schedule We are here Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Project Kickoff Ex. Conditions Analysis Local Concerns Meeting M Traffic Modeling Alternatives Analysis VTrans Tech. Meeting M Alternatives M Presentation Final Report 12/19/16 4 RSG
Study Area Primary Study Area: 250$feet Secondary Study Area in Future Thompson from VT$15 and Allen Martin Purple (Saxon Hill Drive Extension Drive intersection Industrial Park) 12/19/16 5 RSG
SHIP Build�Out Potential Developable Land • Lot C: 37 acres remaining – PERMITTED • 30 & 42 Allen Martin Drive: 180,000 SF building and 60,000 SF building 3 PERMITTED • Allen Brook Development: 116 acres + 28 acres sand extraction – NOT PERMITTED 12/19/16 6 RSG
Crash Review 8 Crash History in SHIP 1 May 2011�May 2016 3 2 12/19/16 7 RSG
Crash Review Crash History at Study Intersection May 2011�May 2016 Road Date Damage / Injury Surface Type of Collision Condition Angle Broadside; NB3L and 01/29/16 Property Damage Only Wet EB3T 09/22/15 Property Damage Only Dry Rear End; NB Broadside; NB3L, EB3T, and 06/24/15 Injury Dry WB3T 02/17/15 Property Damage Only Ice Rear End; EB 11/11/14 Property Damage Only Dry Rear End; NB 02/06/14 Property Damage Only Snow Rear End; WB; 4 cars 06/11/13 Property Damage Only Wet Rear End; WB 09/23/11 Injury Dry Rear End; WB 12/19/16 8 RSG
Local Concerns Meeting – June 8, 2016 IDENTIFIED ISSUES: • Rear End Crashes on VT315 • Congestion on Allen Martin Drive • Congestion on VT315 • Speeding vehicles along VT315 • Engine braking noise • Uncomfortable environment for pedestrians 12/19/16 9 RSG
Alternatives
Identified Issues Alternatives to Address ("X" indicates the proposed alternative may partially address the issue) Identified Issues Engine braking noise from vehicles Congestion on Allen Martin Drive Uncomfortable environment for Speeding vehicles along VT-15 Congestion on VT Route 15 Rear-end crashes on VT-15 entering speed zone pedestrians Short Term S1 Restrict Engine Braking X X S2 Extend 35 mph speed zone X X S3 Striped shoulder on VT-15 adjacent to turn lane island X S4 Intersection warning sign on approach to Allen Martin Drive on VT-15 X Medium Term M1 Extend green space into VT-15 near turn lane island (permanent S3) X M2 Add a WB left turn lane X X M3 Extend sidewalk along VT-15 from Sandhill Rd X X M4 Add / extend separate NB right- and left-turn lanes X M5 Widen eastbound right turn curve radius X M6 Flashing intersection beacon X Long Term L1 Construct Allen Martin Parkway exit from VT-289 X L2 Construct Thompson Drive extension to VT-117 X L3 Intersection Control Modification: Signal X X L4 Intersection Control Modification: Roundabout X X X X 12/19/16 11 L5 Construct connection to Saxon Hill Road X RSG
Identified Issues Alternatives to Address ("X" indicates the proposed alternative may partially address the issue) Identified Issues Engine braking noise from vehicles Congestion on Allen Martin Drive Uncomfortable environment for Speeding vehicles along VT-15 Congestion on VT Route 15 Rear-end crashes on VT-15 entering speed zone pedestrians Short Term S1 Restrict Engine Braking X X S2 Extend 35 mph speed zone X X S3 Striped shoulder on VT-15 adjacent to turn lane island X S4 Intersection warning sign on approach to Allen Martin Drive on VT-15 X Medium Term M1 Extend green space into VT-15 near turn lane island (permanent S3) X M2 Add a WB left turn lane X X M3 Extend sidewalk along VT-15 from Sandhill Rd X X M4 Add / extend separate NB right- and left-turn lanes X M5 Widen eastbound right turn curve radius X M6 Flashing intersection beacon X Long Term L1 Construct Allen Martin Parkway exit from VT-289 X L2 Construct Thompson Drive extension to VT-117 X L3 Intersection Control Modification: Signal X X L4 Intersection Control Modification: Roundabout X X X X 12/19/16 12 L5 Construct connection to Saxon Hill Road X RSG
Do Nothing Alternative ISSUES ADDRESSED: • None DISCUSSION: • Least expensive • Least impactful • Does not address congestions, safety, or other identified issues RECOMMENDATION: • Must be considered Estimated Cost: $0 12/19/16 13 RSG
S2: Extend Speed Zone ISSUES ADDRESSED: • Engine brake noise • Speeding through project area • Uncomfortable pedestrian environment DISCUSSION: • May address the issues, reduce severity of crashes • Speed zones should be set by engineering study of the corridor RECOMMENDATION: Estimated Cost: • Recommend speed study $2,000 12/19/16 14 RSG
S3: Striped Shoulder on VT�15 at Island Striping in 2011 (Google Streetview) ISSUES ADDRESSED: • Congestion at Allen Martin Drive DISCUSSION: • Previously there; why removed? • Provide improved sight distance, increased left turn storage RECOMMENDATION: • Recommend to replace striping Estimated Cost: Striping in 2016 $1,500 12/19/16 15 RSG
S4: Enhanced Intersection Warning Sign ISSUES ADDRESSED: • WB rear end crashes DISCUSSION: • With queue detector and solar power, alert motorists to stopped traffic in roadway • Not necessary if mid3 to long3 term solutions are pursued RECOMMENDATION: • Recommended only if no mid� to long� term solution is Estimated Cost: acceptable $15,000 12/19/16 16 RSG
M1: Extend Island into Roadway ISSUES ADDRESSED: • Congestion at Allen Martin Drive DISCUSSION: • Long term application of S3 • Provide improved sight distance, increased left turn storage RECOMMENDATION: • Initially recommended in conjunction with other mid� term solutions Estimated Cost: $17,500 12/19/16 17 RSG
M2: Construct WB Left Turn Lane ISSUES ADDRESSED: DISCUSSION: RECOMMENDATION: • WB rear end crashes • Long term application of S3 • Initially recommended in conjunction with • Congestion on VT315 • Provide improved sight other mid�term distance, increased left turn solutions storage Estimated Cost: $390,000 12/19/16 18 RSG
M4: Extend NB Left & Right Turn Lanes ISSUES ADDRESSED: • Congestion and queuing on Allen Martin Drive DISCUSSION: • Allows right turning vehicles to bypass queued left turns • May not be needed if long3 term alternatives are pursued RECOMMENDATION: • Queueing not currently an issue; pursue if long term Estimated Cost: solutions are not developed $165,000 12/19/16 19 RSG
M5: Widen EB Right Turn Radius ISSUES ADDRESSED: • Congestion on VT315 DISCUSSION: • Turning trucks track into VT3 15 through OR Allen Martin Drive • Will increase pavement width; may increase speed RECOMMENDATION: • Redesign / improvements at intersection must Estimated Cost: account for design vehicle $17,350 movements 12/19/16 20 RSG
M6: Flashing Intersection Beacon ISSUES ADDRESSED: • Rear End Crashes on VT315 DISCUSSION: • Could be placed on span wire with poles designed for ultimate signal (if preferred) RECOMMENDATION: • Initially recommended in conjunction with other mid�term solutions Estimated Cost: $50,000 12/19/16 21 RSG
L3: Intersection Control: Signal ISSUES ADDRESSED: • Congestion on Allen Martin Drive DISCUSSION: • Intersection control warranted with 80 acres additional development • Could be phased with mid3 term improvements • Acceptable operations • Light / noise into neighbors RECOMMENDATION: Estimated Cost: • Viable intersection control $1.5 million 12/19/16 22 RSG
L4: Intersection Control: Roundabout ISSUES ADDRESSED: • Congestion on Allen Martin Drive DISCUSSION: • Intersection control warranted with 80 acres additional development • Turn lane widening unnecessary • Generally considered safer • Large impacts to fewer properties RECOMMENDATION: Estimated Cost: • Viable intersection control $2.0 million 12/19/16 23 RSG
Intersection Operational Analysis
Operational Analysis: 2016 Scenario Volumes 12/19/16 25 RSG
Operational Analysis: 2036 Scenario Volumes 12/19/16 26 RSG
Operational Analysis: Existing Geometry “DO NOTHING” ALTERNATIVE 12/19/16 27 RSG
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