Can I travel on Friday if I am to miss Friday prayers because of train timing?
Answer:
The following conditions must be met in order for Jummah Salah to be obligatory:
- To be male
- To be within the boundary of a town (Muqeem)
- To be healthy (physically able to perform Salah)
- The road should be safe
- Not to be physically handicapped. (Kitabul Fiqh p.603 v.1)
The following conditions are necessary for the Jummah Salah to be correct:
- A large town
- Time of Zuhr prayer
- The Khutbah
- Congregation
There are three people besides the Imam (four Muslims) at your workplace which will constitute the congregation. The presence of females or minors only is not enough. (Raddul Muhtar p.24 v.3)
- Izn Aaam (general call for the prayer)
It is permissible to undertake a journey before the beginning the Zuhr prayer (Zawaal) on Friday. However, it is Makruh Tahreemi to undertake a journey after Zawaal on a Friday without performing the Jummah Salah as Jummah Salah is obligatory upon a Muqeem (resident of a town).
Saaiduna Ibn Umar 
has satated, “Jummah does not prevent a person from undertaking a journey as long as the time for the Jummah Salah has not arrived. (Kanzul Ummal p.40 v.1)
Only Allah Knows Best
Mohammed Tosir Miah
Darul Ifta Birmingham