What does 車両通行止め look like on HTC?

On HTC it is the design shipped in Sense 8, shown above at full size. Older revisions are listed beneath it.

When did HTC add 車両通行止め?

HTC first drew 車両通行止め in Sense 7, released 2015年3月30日.

HTC Corporation has shipped 2 versions of 車両通行止め. Each is dated, so you can see when the design changed.

HTC

HTC Corporation has drawn 車両通行止め 2 times. Every revision HTC has shipped is below, newest first.

What does 車両通行止め look like on HTC?: On HTC it is the design shipped in Sense 8, shown above at full size. Older revisions are listed beneath it.
When did HTC add 車両通行止め?: HTC first drew 車両通行止め in Sense 7, released 2015年3月30日.
How many times has HTC redrawn 車両通行止め?: HTC Corporation has shipped 2 versions of 車両通行止め. Each is dated, so you can see when the design changed.

HTC artwork for this emoji spans 2015 to 2016.