# Chiang Mai Main Line

Chiang Mai Main Line is a main line of the Northern Line operated by State Railway of Thailand that connects between Hua Lamphong railway station in the central and Chiang Mai railway station in the north, passing through many provinces. It is the second longest railway line in Thailand, after Su-ngai Kolok Main Line. Notable services include the Nakhon Phing Express, the first class train serving the line. Many accidents have occurred on the line in recent years, prompting renovation work to commence on the track in late 2013, finally reopening on 2 December 2013.

## History
### Timeline

| No. | Segment | Year opened |
| 1 | Ban Phachi Junction–Lopburi | 1901 |
| 2 | Lopburi–Pak Nam Pho | 1945 |
| 3 | Pak Nam Pho–Phitsanulok | 1907 |
| 4 | Phitsanulok–Ban Dara Junction | 1908 |
| 5 | Ban Dara Junction–Pang Ton Phueng | 1909 |
| 6 | Pang Ton Phueng–Mae Phuak Halt | 1911 |
| 7 | Mae Phuak–Pak Pan | 1912 |
| 8 | Pak Pan–Huai Mae Ta | 1913 |
| 9 | Huai Mae Ta–Ban Pin | 1914 |
| 10 | Ban Pin–Pha Kho | 1915 |
| 11 | Pha Kho–Mae Chang | 1915 |
| 12 | Mae Chang–Nakhon Lampang | 1916 |
| 13 | Nakhon Lampang–Pang Hua Phong | 1916 |
| 14 | Pang Hua Phong–Pang Yang | 1918 |
| 15 | Pang Yang–Chiang Mai | 1926 |

### Name changes

| Name | Old name | Year changed |
| Ayutthaya | Krung Kao | Rama VI period |
| Nakhon Sawan | Nong Pling | — |
| Phrom Phiram | Ban Krab Phuang | — |
| Tron | Wang Hin | — |
| Saraphi | Pa Yang Loeng | 1961 |

## Services

| Train no. | Type | Termini | Termini |
| 3 | Special Express | Hua Lamphong | Sawankhalok |
| 4 | Special Express | Sawankhalok/Sila At | Hua Lamphong |
| 7 | Special Express | Hua Lamphong | Chiang Mai |
| 8 | Special Express | Chiang Mai | Hua Lamphong |
| 9 (Utrawithi) | Special Express | Hua Lamphong | Chiang Mai |
| 10 (Utrawithi) | Special Express | Chiang Mai | Hua Lamphong |
| 13 | Special Express | Hua Lamphong | Chiang Mai |
| 14 | Special Express | Chiang Mai | Hua Lamphong |
| 51 | Express | Hua Lamphong | Chiang Mai |
| 52 | Express | Chiang Mai | Hua Lamphong |
| 102 | Rapid | Chiang Mai | Hua Lamphong |
| 105 | Rapid | Hua Lamphong | Sila At |
| 106 | Rapid | Sila At | Hua Lamphong |
| 107 | Rapid | Hua Lamphong | Den Chai |
| 108 | Rapid | Den Chai | Hua Lamphong |
| 109 | Rapid | Hua Lamphong | Chiang Mai |
| 111 | Rapid | Hua Lamphong | Den Chai |
| 112 | Rapid | Den Chai | Hua Lamphong |
| 201 | Ordinary | Hua Lamphong | Phitsanulok |
| 202 | Ordinary | Phitsanulok | Hua Lamphong |
| 207 | Ordinary | Hua Lamphong | Nakhon Sawan |
| 208 | Ordinary | Nakhon Sawan | Hua Lamphong |
| 209 | Ordinary | Hua Lamphong | Ban Takhli |
| 210 | Ordinary | Ban Takhli | Hua Lamphong |
| 211 | Ordinary | Hua Lamphong | Taphan Hin |
| 212 | Ordinary | Taphan Hin | Hua Lamphong |
| 301 | Commuter | Hua Lamphong | Lop Buri |
| 302 | Commuter | Lop Buri | Hua Lamphong |
| 303 | Commuter | Hua Lamphong | Lop Buri |
| 304 | Commuter | Lop Buri | Hua Lamphong |
| 305 | Commuter | Hua Lamphong | Ayutthaya |
| 306 | Commuter | Ayutthaya | Hua Lamphong |
| 311 | Commuter | Hua Lamphong | Rangsit |
| 313 | Commuter | Hua Lamphong | Ban Phachi |
| 314 | Commuter | Ban Phachi | Hua Lamphong |
| 315 | Commuter | Hua Lamphong | Lop Buri |
| 316 | Commuter | Lop Buri | Hua Lamphong |
| 317 | Commuter | Hua Lamphong | Lop Buri |
| 318 | Commuter | Lop Buri | Hua Lamphong |
| 401 | Local | Lop Buri | Phitsanulok |
| 402 | Local | Phitsanulok | Lop Buri |
| 403 | Local | Phitsanulok | Sila At |
| 407 | Local | Nakhon Sawan | Chiang Mai |
| 408 | Local | Chiang Mai | Nakhon Sawan |
| 409 | Local | Ayutthaya | Lop Buri |
| 410 | Local | Sila At | Phitsanulok |

## Notable railway stations

* Bang Sue Junction - The largest freight yard in Thailand and hence the Phahonyothin main freight terminal. There is also a locomotive depot.
* Ayutthaya station - Northern Bangkok suburban station. High passenger revenue, second only to Bangkok station.
* Ban Phachi Junction - A major junction, where the Northern and Northeastern lines separate.
* Lop Buri Station - The end of northern Bangkok suburban service; a historic military town.
* Nakhon Sawan Station - Nakhon Sawan Main Station, Nong Pling station until 1956.
* Phichit Station- Phichit Main Station
* Phitsanulok Station - Phitsanulok Main station, town with the famous Phra Phuttha Chinnarat
* Ban Dara Junction - Junction for Sawankhalok Line
* Uttaradit Station - Main station for Uttaradit Province.
* Sila At Station - Depot on the Northern Line. Refueling station and up trains will be cut at this station
* Den Chai Station - the dropping point for Phrae with a proposal for a junction for Den Chai-Chiang Rai route
* Nakhon Lampang Station - Depot on the Northern Line. Train will be cut further if going North to Chiang Mai.
* Khun Tan Station - Station in the mountains, base point and entrance for Doi Khuntan National Park. Railway bungalows also situated here
* Lamphun Station - Main station for Lamphun Province
* Chiang Mai station - Terminus