Ronkonkoma Branch

Hicksville to Ronkonkoma

Train #8054 at Farmingdale, using diesel locomotives due to construction.

The western segment of the line from Hicksville to Ronkonkoma was electrified in 1987,^[3] creating a one-seat ride to Penn Station. Formerly, service on this segment was provided by diesel trains, which could not enter Penn Station, requiring a transfer. Average rush-hour trip time from Ronkonkoma to Penn Station decreased from 97 minutes pre-electrification (including the mandatory transfer from a diesel to an electric train) to 71 minutes afterwards.^[4]

The $168.5 million project attracted many new passengers. A survey of peak-hour Ronkonkoma Branch passengers conducted by the LIRR in April 1988 found that 42 percent of the branch's passengers were new to the line: 34 percent switched from other lines (the Port Jefferson and Montauk Branches), 6 percent were new to the LIRR as a whole and 2 percent recently returned to the LIRR. By September 1988, over 2,000 new riders during the morning rush hour had switched to the Ronkonkoma Branch, much of which occurred in the first month after electrification, faster than the LIRR expected. Commuters complained that the expanded parking facilities at Ronkonkoma built in anticipation of electrification were overcrowded and already inadequate, and that double-parking and vandalism were rampant.^[4]

In the decades since, the amount of parking at Ronkonkoma has expanded. In 2012, the Metropolitan Transportation Authority (MTA) started adding a second track to the line between Farmingdale and Ronkonkoma to increase capacity. The project that was completed in 2018.^[5][6]

Greenport Branch

The 46 miles between Ronkonkoma and Greenport is one of the few dark territory areas on the Long Island Rail Road that does not have signals. The relatively small amount of train movements on this segment are governed by train orders and timetable authority. This segment is served by diesel-electric "scoots", most of which terminate at Ronkonkoma, requiring customers traveling west of Ronkonkoma to transfer there. Two eastbound and three westbound scoots travel each weekday between Ronkonkoma and Greenport. Also, one eastbound and two westbound trains each weekday run between Ronkonkoma and Riverhead, and one eastbound each weekday runs as far as Yaphank.

East of Ronkonkoma

Diesel locomotives continue to provide all service between Ronkonkoma and Greenport. Weekend service consists of two round-trips each day between Ronkonkoma and Greenport. On Fridays during the summer, the eastbound trip to Yaphank is extended to Greenport, and one evening trip runs from Greenport to Jamaica, running express between Ronkonkoma and Jamaica. Added in summer 2016, this is the only Greenport scoot trip to serve the New York City terminals.^[7]

The LIRR has tried to discontinue service east of Ronkonkoma on several occasions, citing minimal service due to low ridership. In 2010, the idea was entertained by the financially troubled MTA, who proposed eliminating all scoot service except for the popular summer weekend service.^[8] Ultimately, weekday service remained, but weekend service outside of the summer season (defined as Memorial Day-Columbus Day) was discontinued. In 2013, the span of weekend service was extended to operate from early May to late November.^[9] In 2016, the LIRR restored year-long weekend service between Ronkonkoma and Greenport.^[10]

Despite proposing to eliminate most service east of Ronkonkoma, the MTA is enhancing the segment's infrastructure. The LIRR is required to install a positive train control signaling system on all its trackage by the end of 2018.^[11] The MTA initially budgeted $29 million in its 2015-2019 capital program to add signals along the 10 mile segment from Ronkonkoma to Yaphank. This upgrade would install signals, track circuits and automatic speed control (ASC).^[12][13] However, in a 2017 amendment^[14] of the capital program, the agency postponed the construction of the new signal system, only including $2 million to fund design.^[15] After positive train control was activated on the easternmost portion of the Montauk Branch in November 2017, the Greenport Branch became the only portion of the LIRR that lacked positive train control.^[11]

In its 2015-2034 20-Year Capital Needs Assessment, the MTA describes extending electrification eastward from Ronkonkoma to Yaphank or Riverhead, as well as the addition of a second track between Ronkonkoma and Yaphank as long-term needs.^[16] However, the MTA cites the high cost of electrification and other components as a barrier to present-day action.^[17] If electrification were to be extended eastward, stations would also need upgrading, since all station platforms east of Ronkonkoma are only long enough to fit one train car.

Second track between Farmingdale and Ronkonkoma

Groundbreaking for Phase 1

In 2012, the MTA approved a project to build a second track between Ronkonkoma and Farmingdale. At the time, the only areas east of Farmingdale with two tracks were the segment between Deer Park and Brentwood stations, inclusive; at Central Islip station; and at Ronkonkoma station. Construction of the double track occurred on land that the LIRR has owned since the 1980s, when the land was acquired for the electrification project. The double track project also included upgrades to switches, grade crossings, and station facilities.^[18] This project increased operational flexibilty by allowing reverse-peak service between Farmingdale and Ronkonkoma and by increasing off-peak service between Hicksville and Ronkonkoma, with service operating half-hourly instead of just hourly. This additional capacity allows the Main Line to better serve as a substitute for South Shore lines in case of a disturbance caused by extreme weather.^[18] With the use of the New Track Construction (NTC) method, rail was laid down ten times faster than regular track laying methods, saving $7 million, and allowing the project to be completed 16 months ahead of schedule.^[19]

Work on the two-phase project began in August 2015. As part of Phase 1, the section from Ronkonkoma to Central Islip, consisting of 4 miles (6.4 km) of track, was built to the north of the existing track. This section was laid using a NTC machine, followed by the installation of third rail. The southern track at Central Islip was extended to Brentwood to the south of the existing track.^[20][21] Phase 1 was completed in August 2016.^[19] As part of Phase 2, a second track was added between Deer Park, through Wyandanch, and past Pinelawn to the east end of FARM interlocking at Republic to the south of the existing track. A design–build contract for this phase was awarded in June 2016.^[22] This phase also involved rehabilitating grade crossings, demolishing pedestrian bridges, and building a second platform Wyandanch. Starting in August 2016, to accommodate the second track, supports were pile-driven into the existing embankment near the old site of the Deer Park station, brush was, and embankment was added between Pinelawn and the grade crossing at Little East Neck Road.^[23]:92[24] The last five miles of track were added in January 2018,^[25] and the LIRR began connecting the new second track to the existing double-track segments in spring 2018.^[26][27]

The entire project cost $387.2 million and was completed in September 2018,^[5] over a year ahead of schedule.^[6] As indicated in the MTA's 2015–2034 Capital Needs Assessment,the MTA will extend the double-track to Yaphank if funding is available. This will allow the LIRR to provide additional service in diesel territory, thereby saving travel time.^[28]:64–65

Mid-Suffolk Yard

In 2015, the MTA conducted environmental studies to expand the existing rail yard in Ronkonkoma. This expansion, called the Mid-Suffolk Yard, will add 11 new tracks, increasing the number of total tracks from 12 at present to 23.^[29] The expansion will use space already owned by the MTA located immediately to the south of the existing rail yard and north of MacArthur Airport. The increase in storage space will allow the MTA to increase peak-hour service once East Side Access is complete and service to Grand Central begins. The project is budgeted for $76.6 million.^[30] Locations in Deer Park, Central Islip, and Yaphank were also considered for the construction of the yard. The Deer Park option was dismissed as it would have impacted several grade crossings, duplicated employee facilities and as it would not have benefited riders east of the station. The Central Islip site was dismissed as it would have been located in Connetquot River State Park. The Yaphank option was rejected because of the high cost of electrification and the requirement that station between Ronkonkoma and Yaphank receive upgrades.^[31] Construction was expected to be finished by late 2018,^[30] but as of June 2017 construction will start in September 2017, with completion being pushed back to March 2020.^[32]

Possible reopening of Republic station

The MTA plans to reopen Republic station, which is located between Farmingdale and Pinelawn. The station closed in 1987 as part of the electrification project between Hicksville and Ronkonkoma, and was only used by a dozen daily riders daily, not making it cost-effective to upgrade the station to support electric railcars. However, within the last decade, there has been an increased amount of commercial and residential development along the Route 110 corridor near the station, a major north-south commercial route.^[33] The reopened station would serve this corridor. Funding for the station was deferred from the MTA's 2010-2014 budget due to budgetary issues, but was revived in 2012.^[34][35] The MTA budgeted $5 million in 2015 to design a new station and carry out environmental studies, although construction itself has not been funded yet. The rebuilt station will have two new 12-car platforms, and ADA-compliant ramps.^{[23]:88, 204}