What Is 17 line

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Last updated: April 14, 2026

Quick Answer: 17 Line is a public transportation bus route operated by the MBTA in Boston, Massachusetts, officially designated as Route 17. It runs from Ruggles Station to Grove Hall, primarily along Washington Street, serving Roxbury and Dorchester neighborhoods.

Key Facts

Route 17 began operation in 1922 as a streetcar line before transitioning to buses in 1948
The 17 Line spans approximately 4.7 miles with 44 scheduled stops
Average weekday ridership was 8,200 riders in 2022 according to MBTA data
Service operates 24 hours a day, 7 days a week, making it one of Boston’s key overnight routes
The route is part of the MBTA’s Bus Network Redesign initiative announced in 2023

Overview

The 17 Line is a vital public transit corridor in Boston, Massachusetts, operated by the Massachusetts Bay Transportation Authority (MBTA). Officially known as Route 17, it connects central Boston with southern neighborhoods, providing essential mobility for thousands of residents daily. The route has evolved significantly since its inception, reflecting broader changes in urban transit.

Originally launched as a streetcar service in the early 20th century, the 17 Line transitioned to diesel buses in 1948 and later adopted accessible low-floor models in the 1990s. Today, it remains one of the busiest bus lines in the MBTA system, particularly valued for its 24/7 service. Its path along Washington Street serves historically underserved communities with limited subway access.

Route 17 operates between Ruggles Station and Talbot Avenue, covering approximately 4.7 miles through Roxbury and Dorchester.
The line began as a streetcar service in 1922, part of Boston’s expanding electric rail network in the early 20th century.
Conversion from rail to bus operation occurred in 1948, aligning with national trends toward bus-based public transit.
It serves 44 scheduled stops, including key transfer points like Ruggles Station and Uphams Corner.
The route has maintained 24-hour service since the 1980s, making it a critical overnight transportation option in Boston.

How It Works

The 17 Line functions as a high-frequency urban bus route with standardized schedules, fare integration, and accessibility features. It operates within the MBTA’s larger transit ecosystem, connecting with subway, commuter rail, and other bus lines.

Route Designation: Officially labeled Route 17 in MBTA documentation, it is commonly referred to as the 17 Line by riders and officials.
Service Hours: Operates 24 hours a day, 7 days a week, with reduced frequency during overnight hours (one bus every 30 minutes).
Frequency: During peak hours, buses run every 8 to 10 minutes, increasing to every 15–20 minutes midday and overnight.
Fleet Type: Uses 40-foot low-floor diesel buses manufactured by New Flyer, all equipped with wheelchair lifts and bike racks.
Fare Integration: Accepts CharlieCards and CharlieTickets, with a standard fare of $1.70 as of 2023, part of the MBTA’s flat-rate bus system.
Real-Time Tracking: Equipped with GPS-based arrival systems, allowing riders to track buses via the MBTA website and apps like Transit and Google Maps.

Key Comparison

Feature	17 Line	Route 22	Route 28	Orange Line
Mode	Bus	Bus	Bus	Subway
Route Length	4.7 miles	5.1 miles	6.3 miles	10.1 miles
Stops	44	52	61	19
24-Hour Service	Yes	No	Yes	Yes
2022 Ridership	8,200	7,600	12,400	38,100

The 17 Line stands out among Boston’s surface routes due to its combination of 24/7 service, central corridor location, and consistent ridership. While slower than rail options, it fills critical gaps in neighborhoods not served by subways. Compared to other major bus lines, it offers a balance of frequency, accessibility, and reliability.

Key Facts

Understanding the 17 Line requires examining its operational data, historical milestones, and role in the broader transit network. These facts highlight its significance and ongoing evolution.

8,200 riders used the 17 Line on an average weekday in 2022, according to MBTA performance reports.
The route was converted from streetcar to bus in 1948, reflecting a nationwide shift away from rail-based street transit.
All buses on the 17 Line are ADA-compliant, featuring ramps, audio announcements, and priority seating since 1996.
In 2023, the MBTA included Route 17 in its Bus Network Redesign, planning potential frequency and routing improvements.
The route has a 95% on-time performance rate during daytime hours, based on 2022 MBTA service metrics.

Why It Matters

The 17 Line plays a crucial role in Boston’s transportation equity, connecting lower-income neighborhoods with jobs, healthcare, and education. Its reliability and frequency make it a backbone of daily life for many residents.

Provides access to Ruggles Station, a major transfer hub connecting to the Orange Line, Northeastern University, and Longwood Medical Area.
Serves over 20,000 residents within a half-mile radius, many of whom rely exclusively on public transit.
Supports economic mobility by linking residential areas in Dorchester with employment centers in downtown Boston.
Reduces car dependency in neighborhoods with limited parking and high congestion.
Plays a key role in the city’s climate action goals by offering a low-emission transit alternative.

As Boston continues to grow and adapt, the 17 Line remains a vital transit link. Future upgrades under the Bus Network Redesign could enhance speed and reliability, ensuring it continues to serve the community effectively for decades to come.