Toyohashi Railroad Azumada Main Line

• Line length: Ekimae - Akaiwaguchi 4.8 km, Ihara - Undoukoen-mae 0.6 km
• Track gauge: 1067mm
• Stations: 14 (including termini)
• Double track: Ekimae - Keirinjo-mae
• Single track: Keirinjo-mae - Akaiwaguchi, Ihara - Undoukoen-mae
• Electrification: 600 V DC overhead line
• Signaling (single track sections): automatic block signaling

Between Fudaki and Higashi-haccho, the line runs on the National Route 1. Azumada Main Line being the only tram line that currently runs on the route.

The curve at Ihara where the line to Undoukoen-mae branches has a radius of 11 m. This is the sharpest railway curve in Japan and is known as the Ihara Curve.

Odensha

On the Azumada Main Line, several special trams are operated every year. Mo3100 car 3102 (retired March 2018) had been used for these trams, but since 2010, Mo3200 car 3203 is used.

Below is a list of major special trams.

Beer Tram

Two return trips between Ekimae and Undokoen-mae are operated from June to August. Reservation is required.

Decorated Tramcar

A decorated tramcar (花電車) is operated for around one week before the Toyohashi Festival in October. Although most decorated tramcars in Japan do not allow passengers to board, the decorated tramcar on the Azumada Main Line is operated as a normal tram service.

Odensha

Odensha is a special tram service on which oden, a Japanese pot dish popular in the winter, is served. The name is a play-on-words that combines the dish name oden with densha, meaning "train" in Japanese. One return trip on weekdays and two return trips on weekends are operated from November to February between Ekimae and Undokoen-mae. The service started in 2007 as a winter version of the beer tram.

The name "Odensha" is a registered trademark of Toyohashi Railroad and in March 2015, "Odensha in Okayama" was operated on the Okayama Electric Tramway with Toyohashi Railroad's cooperation.

• Section closed in 1969 (official closure 1973). As Ekimae was moved at the time of closure by 0.2 km, the length of the abolished section is actually 0.6 km rather than 0.4 km. In 1998, Ekimae was moved back to its original position.

• Section closed in 1976.

Most cars now have full body advertising or special liveries.

Mo3200

Ex-Meitetsu Mo580 used on the Gifu City Line and the Minomachi Line. Three cars were transferred to Toyotetsu in 1976 and 1981. Car Mo3201 ceased operations on 19 September 2019 and car Mo3202 on 11 February 2020.[5][6] Car Mo3203 has been designated for special trams since 2009 (it is used on normal services as well when not serving as a special tram).[7][8]

Mo3500

Ex-Toden Arakawa Line (Tokyo) Type 7000. Four cars were transferred in 1992 and 1999.

Mo780

Ex-Meitetsu Mo780 used on the Gifu City Line and Ibi Line (a "railway" line that was operated together with Gifu City line in its final years). All seven cars of the type were transferred after the lines' closure on 1 April 2005.

Mo800

Ex-Meitetsu Mo800 used on the Minomachi Line. There were three cars of the type, of which one (car Mo801) was transferred to Toyotetsu and the other two (cars Mo802 & Mo803) to Fukui Railway in Fukui Prefecture. The type is the first low-floor tramcar on the line, although the end sections are high floored. It was initially unable to enter the Undokoen-mae branch due to the sharp curve, but was modified in 2018 to enable it.[9] On 26 December 2018, it was announced that Toyotetsu will buy the two cars belonging to Fukui Railway.[10] The two cars were carried out of Fukui Railway's depot on 13 March 2019, and after undergoing modifications, car Mo802 started operations on 16 October 2019.[11]

T1000

A full low-floor tramcar introduced as part of the Toyohashi Tramway Revitalization Project. Manufactured by Alna Sharyo as part of its Little Dancer series (type Ua), it is an articulated tramset consisting of three cars and two bogies (the middle car has no bogie and floats). It is the second new tramcar type that are not transfers from other tramways for the company in 83 years (the first being Type 1 made on the opening of the line). It was given the nickname Hottoram (from "Hotto" (relief) and "tram") and started operations on 19 December 2008. It is unable to enter the Undokoen-mae branch due to the sharp curve.

MoHa100

Made for the line opening in 1925 as Type 1. Ten cars were made in total and all cars ceased operations by 1957.

MoHa200

Ex-Asahikawa Town Tram (Asahikawa, Hokkaido) cars introduced in 1949. All cars ceased operations by 1965.

MoHa300

Ex-Nagoya City Tram cars with a stepped roof design and open-air decks introduced in 1950. All cars ceased operations by 1963.

MoHa400

Ex-Nagoya City Tram cars (originally from Kuwana Electric Tramway and Shimonoishiki Electric Tramway) introduced in 1951. All cars ceased operations by 1963.

MoHa500

Ex-Nagoya City Tram cars introduced in 1957. All cars ceased operations by 1968, marking the end of two-axle cars for the company.

Mo3600

Ex-Mie Kotsu Shinto Line Mo541 introduced in 1961 as the line's first bogie car. All cars ceased operations in 1971.

Mo3700

Ex-Nagoya City Tram Type BLA introduced in 1963. Of the four cars introduced, three were withdrawn in the 1970s, with one operating as a "Retro Tram" until 2007. It has been on display at the City of Toyohashi's Development Center for Children's Futures since 2008.

Mo3800

Ex-Nagoya City Tram Type 900 introduced in 1963. Originally called Type 800, it was renamed in 1968. All cars ceased operations by 1989.

Mo3900

Ex-Nagoya City Tram Type 1150 introduced in 1964. All cars ceased operations by 1971.

Mo3300

Ex-Hokuriku Railroad Kanazawa City Line (defunct) MoHa2300 introduced in 1967. Originally called Type 300, it was renamed in 1968. All cars ceased operations by 2000.

Mo3100

Ex-Nagoya City Tram Type 1400 introduced in 1964. All but one car ceased operations by 2006, after which car 3102 was used for special trams until 2011.

• The number in brackets in the "total" section is the number of air-conditioned cars.
• Quantities are as of 1 January for 1982 and 1983 and as of 1 April for 1984 and later.[12]