Where to upload/publish gigabytes of experiment data I have conducted experiment that had unexpected result which goes against  consensus in my community and I worry whether it will be accepted by other researchers. For that reason I would like to make all my work public - the resources, the programs, the results.. Is there online service where I can publish the data for free and obtain DOI number that I can reference in my paper?

It makes over 2GB when packed.

I have heard that such services exist for people in biology and medical research but I work on transportation systems which is rather different (we do not produce so much data usually). I plan to submit the paper to journal published by IEEE.
You could also use Zenodo, which I personally prefer over Figshare since it is an open platform run by a scientific institution (the CERN) instead of a for-profit (compare the privacy policies of zenodo and figshare to get an idea on why this matters). They also guarantee that, should they ever shut down, they will migrate your data to another platform (and until then, your data is on the same infrastructure as the data created by the Large Hadron Collider (LHC)). 

Their size limit is 2 GB per file, and you can add multiple files to a single dataset upload (which means you may not even need to pack your data, if it can be sensibly split into multiple files of &lt;2 GB - and if you need more space, you can contact them). Finally, you also get a DOI for your data (which will be updated to point to the new home of your data if they ever shut down). Right now, it can be used free of charge while they develop a sustainability plan (later, they may charge you for uploading larger datasets, but there will always be a free tier with reasonable sizes).