zone to $7.25 for travel between Zone 1 and Zone 10. Fares can be purchased on the MBTA mTicket app, at automatic vending machines located at major stations, from businesses near some stations, or from conductors on board trains. Discounted passes include monthly passes (with or without free transfer to other MBTA services), "flex passes" valid for five 24-hour periods, and $10 passes offering unlimited travel on a single weekend. As with other MBTA services, discounted fares and passes are available for several groups including disabled passengers, passengers over age 65, and students attending certain schools. Foxboro special event services and the CapeFlyer have separate fares; regular MBTA fares and passes are not valid. Fares are collected by train conductors; while fare evasion is explicitly illegal under state law, it is not criminal. Faregates have also been installed at North Station, with plans for installation at Back Bay and South Station. The second-generation MBTA fare collection system, planned for completion in 2024, will standardize fare media across modes and allow uses of CharlieCards for all commuter rail trips. History Early history Eight intercity mainlines radiating from Boston opened between 1834 and 1855: the Boston and Worcester Railroad (B&W) in 1834–35, Boston and Providence Railroad (B&P) in 1834–35, Boston and Lowell Railroad (B&L) in 1835, Eastern Railroad in 1838–1840, Fitchburg Railroad in 1843–45, Boston and Maine Railroad (B&M) in 1845, Old Colony Railroad and Fall River Railroad in 1845–46, and Norfolk County Railroad in 1849–55. Commuter rail service allowing suburban residents to work in Boston began with the B&W in 1834; by the 1860s, commuting was possible on the eight mainlines and a number of branch lines. Mergers prior to the 1880s were primarily acquisitions of branch lines and consolidations with connecting lines: the B&A merged with the Western Railroad in 1874 to become the Boston and Albany Railroad (B&A), the Fall River Railroad and several other lines merged into the Old Colony Railroad, and the Norfolk County Railroad eventually became part of the New York and New England Railroad (NY&NE). The narrow gauge Boston, Revere Beach and Lynn Railroad (BRB&L) opened in 1875, competing with the inner portion of the Eastern Railroad. Unlike the other lines, it never built rails into downtown Boston, and instead relied on a ferry connection from East Boston. The B&M obtained control of the Eastern in 1883, the B&L in 1887, and the Fitchburg in