Page:A Study to Eliminate Cardinal Initials on Interstate Routes and Other Needed Changes in Interstate Route Numbering.pdf/7

7 It is recommended this change be approved provided the existing geometries are adequate for satisfactory operations. It should be noted that route number I-80S has been deleted throughout the State of Ohio and renumbered as I-76. This change has received both AASHO and FHWA approval.

Item #15 - Ohio - Columbus

This is similar to the Item #14 wherein the State is considering the renumbering of the north leg of I-70 in downtown Columbus as I-670. It is recommended that this change be made provided the geometries are adequate for satisfactory operations.

Item #16 - Maryland & District of Columbia - Baltimore Washington, D. C.

In their previous response to the initial phase of this study the Maryland DOT expressed their desire to eliminate the cardinal initials from routes I-70N and I-70S. It is their recommendation to renumber I-70N as I-70 and I-70S as I-370. Since it is be­coming apparent that I-70S will not be constructed within the District of Columbia the proper termination point of I-70S would be at its Interchange with I-495 in the northwest section of the metropolitan area. It is, therefore, recommended that I-70N be changed to I-70. However, since I-70S connects at both ends to another Interstate route, it is recommended that it be changed to I-270 rather than I-370. In addition it is believed that the use of the I-270 route number would solve the signing and some of the operation problems in this area since the west leg of the present I-70 - I-495 Interchange complex is designated as I-270.

Item #17 - Delaware - Wilmington

The State is contemplating the switching of I-95 and I-495 in the Wilmington area as soon as construction progresses to a point of serviceability.

Item #18 - Pennsylvania & New Jersey - Philadelphia - Camden Area

The changes in routes I-76 and I-676 as shown on the attached packet for this item number have recently been approved by AASHO and FHWA approval was given on August 28, 1972.

Item #19 - Iowa & Nebraska - Council Bluffs - Omaha Area

Upon the completion of I-680 in this area, the Iowa State Highway Commission has stated that they will consider renumbering I-80N as I-680 and route I-680 over I-29 for an 11 mile overlap. This