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I-595 from I-75 to I-95

Download the Final Study (PDF, 20.1MB)

Executive Summary

In December 2004 the Florida Department of Transportation (FDOT) completed a Systems Interchange Modification Report (SIMR) for the implementation of improvements along the segment of I-595 extending from east of I-75 to I-95. The SIMR was completed as a component of the associated I-595 Project Development and Environment (PD&E) Study that was ultimately approved by the Federal Highway Administration (FHWA) in June 2006. The FHWA’s approval authorized the construction of the I-595 Reversible Express Lanes along with other capacity improvements on I-595 mainline and at the interchanges. Except for the connections to I-95, the I-595 improvements were substantially completed in April 2014, when the reversible express lanes were opened to traffic.

Subsequent to the approval of the I-595 PD&E study, the FDOT initiated plans for implementation of new express lanes along I-95 as part of a regional express lanes system. Based on this new vision for a regional express lanes system, the FDOT revisited the I-595 PD&E Study and developed a new design concept (Modified Recommended Alternative) that would introduce ramps providing direct connections between I-595 and the new I-95 Express Lanes. The Department determined that the proposed design modifications to the I-595 PD&E Preferred Alternative merit a re-evaluation of the I-595 SIMR. This Addendum to the I-595 SIMR presents the reevaluation of the traffic operations analysis for the Modified Recommended Alternative in order to gain concurrence from the Federal Highway Administration.

Purpose and Need

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Purpose: The purpose of the proposed design change is to modify the existing system-to-system connection between I-595 and I-95, providing direct connections between the I-95 Express Lanes and the I-595 General Use and Reversible Express Lanes. The proposed design modifications will facilitate implementation of the planned South Florida regional express lanes network, providing improved travel reliability and long term mobility options for South Florida commuters.
Need: The need for the proposed improvements is consistent with the needs expressed in the I-
595 PD&E study as well as the recently approved I-95 Express PD&E Study. The need for the
project relates to:
-- System Linkage: I-595 Reversible Express and I-95 Express are part of FDOT’s vision for building an interconnected regional system of express lanes in Southeast Florida. This planned regional express lanes network is depicted in Figure 1-1. The proposed project will
provide connectivity between these two express lanes systems – I-595 Reversible Express and I-95 Express. This systems connectivity will maximize long-term capacity needs, mobility needs and travel reliability along both the I-595 and I-95 corridors.
-- Emergency Evacuation: As part of the emergency evacuation route network designated by the Florida Division of Emergency Management, I-595 is critical in facilitating the movement of traffic during emergency evacuation periods. This facility connects other major arterials and highways designated on the state evacuation route network within the project limits, such as I-95 and the Florida's Turnpike. The proposed project will allow for enhanced emergency
access and incident response times.
-- Multi-Modal Transportation System: The proposed improvements are consistent with state and local government policy of promoting multi-modal transportation systems. Connectivity between the I-595 and I-95 express lanes systems will facilitate expansion of current/planned express bus and bus rapid transit systems throughout the region. It will also provide increased travel options for users of both the I-595 and I-95 corridors. These increased travel choices will ultimately help in managing and accommodating the long term travel demand needs in the county.

Recommended Alternative

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Please see the attached recommended alternative

Travel Time Savings

Safety Benefits