Why can't this Gym Cycle concept get onto Road?

I had recently used this Gym cycle and was amazed at how fast one could go by cycle if we use propulsion from the hand in addition to the leg.

One can easily average 30kms per hour and the maximum speed could go upto 45 kmph.

I wonder why there are no cycles on the road with such a concept of using both hand and leg.

Is it not viable to use such a concept on the road?

Or has it been tried before and was not successful?

PS: In addition to speed, this cycle also helps in burning calories almost close to running. I am amazed that it can do that without having to impact your knees so much like running