The H-13 designation debuted in 1972 between Nahma Junction and H-58 ; H-13 turned east and ran concurrently with H-58 before turning north on Miners Castle Road.

* runs from H-58 just east of the city to Miner's Castle within Pictured Rocks National Lakeshore.

The county road ends at the intersection with H-58 ( Munising – Van Meer – Shingleton Road ) in the Pictured Rocks National Lakeshore.

*, a north-south route, terminates at H-58 in the eastern part of the city.

* Melstrand is an unincorporated community at the junction of county highways H58 and H52 / Cusino Trail ( Elevation: 928 ft ./ 283 m .), about eleven miles ( 18 km ) east of Munising on county road H-58.

It is located on Lake Superior at and is the eastern gateway to the Pictured Rocks National Lakeshore via H-58.

M-77 intersects H-58 in town and ends north of there by the Grand Marais harbor.

The scenic spur also terminates in Grand Marais with M-77 north of the junction with H-58.

U. S. Route 113 formerly ran along Bay Road from Milford to US 13 near the State Capitol Complex, however it was decommissioned in 2004 to avoid the concurrency with DE 1 between the Dover Air Force Base and Milford.

By the time the 1927 New Jersey state highway renumbering had been implemented and in law, the route was re-designated as State Highway Route S-28, a prefixed spur of State Highway Route 28 in Middlesex, following Raritan Avenue and River Road through Piscataway and Highland Park, joining State Highway Route 27 on a concurrency into New Brunswick, and onto George Street in New Brunswick southward.

Also in the 1953 renumbering, the Route 35 designation was removed from the concurrency with U. S. Route 9 between South Amboy and Iselin and reassigned to the former alignment of Route 4 between South Amboy and Route 27 in Rahway.

In 1953, Route 37 was legislated along its current alignment, with the designation dropped on the Trenton – White Horse segment to avoid the concurrency with U. S. Route 206 and the Seaside Heights – Point Pleasant section becoming a realignment of Route 35.

In 1953, the southern terminus was cut back to its current terminus in the Williamstown section of Monroe Township to avoid the concurrency it shared with U. S. Route 322.

With the 1953 New Jersey state highway renumbering, which eliminated long concurrencies between U. S. Routes and State Routes, the southern terminus of Route 42 was cut back to Williamstown to avoid the concurrency with U. S. Route 322.

The S44 designation was removed in 1953 to avoid the concurrency with US 322.

The northern terminus of Route 45 was moved to its current location in 1953 in order to avoid the concurrency with U. S. Route 130.

In the 1953 New Jersey state highway renumbering, the northern terminus of Route 45 was cut back to its current location in Westville to avoid the concurrency with U. S. Route 130.

In 2012, the Mullica Hill Bypass was completed, and US 322 was removed from its concurrency with Route 45.

Route 48 was designated onto its current alignment in 1953, eliminating the concurrency it shared with U. S. Route 40 from Carneys Point Township to Atlantic City.

The inspiration for multi-generational concurrency control was a database system done by Prime that supported page level snapshots.

In 2009, the Collingswood Circle at the southern terminus of the US 30 concurrency was replaced with an at-grade intersection with jughandles.

Each object in the database is given two timestamp fields which are not used other than for concurrency control: is the time at which the value of object was last used by a transaction, is the time at which the value of the object was last updated by a transaction.

Optimistic concurrency control was first proposed by H. T.

Limbo's approach to concurrency was inspired by Hoare's Communicating Sequential Processes ( CSP ).

Prior to 1953, the road was Route S29 from the Delaware River to downtown Lambertville, a part of Route 29 between Lambertville and Ringoes, and a concurrency of Route 29 and Route 30 in Ringoes.

Prior to the 1953 New Jersey state highway renumbering, today's Route 179 was composed of three state routes: Route S29, designated in 1949 from the New Hope-Lambertville Bridge into Lambertville, a part of Route 29 from Lambertville to Ringoes that was designated in 1927, and a concurrency of Routes 29 and 30 northeast from Ringoes that was also designated in 1927.

In 2007, the terminus was moved to its current location southwest of Poplar Bluff, eliminating a concurrency between US 160 and two other highways ( US 67 and US 67 Business ) over the last 10 miles ( 16 km ) of US 160.

This change resulted in a concurrency with the southernmost end of M-44 that was later removed in 1977 when M-44 was truncated northward.

Later in 1974, the M-32 concurrency was removed when M-32 was scaled back to its former terminus.

Within a year, that business loop was redesignated BL I-94 when the US 12 designation was removed from the freeway and applied to the former US 112 ; at the same time, the US 112 / M-99 concurrency in Jonesville became US 12 / M-99 as well.

After the transfer, M-62 ended at the eastern M-140 junction and the concurrency was removed.

This concurrency was removed in late 1946 or early 1947 when M-49 was realigned to smooth out the corners in the roadway a M-120.

The M-82 concurrency was removed in 1938, and a more direct routing between Six Lakes and Edmore opened at the same time.

The old road became an extension of SR 526 ( now CR 526 ), and the concurrency with SR 500 / SR 600 was removed.

By June 1942, the M-24 concurrency was removed as M-24 was realigned to replace M-85 between Vassar and Caro.

The US 25 concurrency was removed and the terminus was moved to M-39 / Southfield Road in Allen Park.

In this way it differs from some other models of concurrency, e. g., the Petri net model in which tokens are simultaneously removed from multiple locations and placed in other locations.

That concurrency was removed in 1978.

In 1976, the discontinuity resulting from the concurrency with State Route 84 was removed.

This shortened the highway's length by 1. 3 kilometers and removed the 7. 2 kilometer concurrency with Highway 27.

In 2009, SH 50's concurrency with SH 24 was removed.