JF62 INTERSECTION CONTROL July 2018
FDOT’S MANUAL ON INTERSECTION CONTROL EVALUATION • Adopted November 2017 • Why ICE? • When ICE is Required? • Applicability and Process • Tools and Resources D1 Training 2
ICE PURPOSE • Consistently consider multiple context ‐ sensitive control strategies when planning a new or modified intersection through… • Informed decision ‐ making considering purpose and need, context classification, safe travel facilities for all road users, with the • overall best value • Select a context ‐ sensitive control strategy considering the goals and needs of the community and all road users • • Measure the control strategy’s value using performance ‐ based criteria • • Promotes thoughtful consideration of alternative intersection types through quantitative analysis D1 Training 3
INTERSECTION TYPES Roundabout ICE will replace the 3 step roundabout evaluation process in 2020 D1 Training 4
INTERSECTION TYPES Median U ‐ Turn (MUT) No left turns allowed at main signalized intersection D1 Training 5
INTERSECTION TYPES Median U ‐ Turn (MUT) No left turns allowed at main signalized intersection D1 Training 6
INTERSECTION TYPES Restricted Crossing U ‐ Turn (RCUT) Unsignalized Signalized D1 Training 7
INTERSECTION TYPES Jughandle D1 Training 8
INTERSECTION TYPES Displaced Left Turn Left turns and through movements operate concurrently Also called continuous flow intersection Could have displaced lefts on 2 legs instead of all 4 D1 Training 9
INTERSECTION TYPES Continuous Green T Will be eliminated from ICE D1 Training 10
INTERSECTION TYPES Quadrant Roadway No left turns allowed at main signalized intersection D1 Training 11
INTERSECTION TYPES Quadrant Roadway No left turns allowed at main signalized intersection D1 Training 12
INTERSECTION TYPES Quadrant Roadway No left turns allowed at main signalized intersection D1 Training 13
FDOT ICE IMPLEMENTATION PLAN • 2018: Training and Acclimation • Implementation Focus: District Training Two intersections per district • • 2019: Districts Identify & Conduct ICE Analysis for Additional Locations • Implementation Focus: Refine ICE Process Evaluate minimum of three projects in these offices/focus areas • PD&E • Traffic Operations • Access Management/Permitting • • 2020: Full ICE Procedure Implementation by Districts • Implementation Focus: Mainstream ICE Process ICE Manual Procedures fully effective January 1, 2020 • 3 Step Roundabout Analysis replaced by ICE • Quality Assistance Reviews (QAR) starting in Year 4 • D1 Training 14
ICE STAGE 1 PROCESS D1 Training 15 Reference: FDOT Manual of Intersection Control Evaluation; Nov. 1, 2017; Figure 2; Page 10
Recommend
More recommend
