YES, a horse can be used as a second means of transport in the areas where the horses are available like the western countries where they keep horses and take good care of them very well.
They are a means of transport and also a source of pleasure (horse and camel races).
You can transport your horse in a horse trailer
the most effecient use of tranport is the horse
No. In that period the only means of transport was either on foot, horse or horse/ox drawn carriage (and sedan chair).
Your question is very unclear but to transport it you a horse box or trailor or you can ride it.
Yes, it is a type of transport.
In some places yes, the horse is considered a vehicle. Some states you can get a driving while intoxicated ticket if you ride drunk.
by horse
Stagecoach, horse or boat.
a horse
transport
by horse and carrage by horse and carrage