I often have use lines to represent direction of traffic. It would be great if AGOL had an option to change the properties of lines so that arrows or other symbols could be added to the start/end/middle of the line as it is possible in desktop.
The only way I have managed to get around this is by adding point attributes with angles set up. This is however very time consuming as my data is time aware and therefore I have to add time attribute to corresponding line features.
Additional request to add railroad symbology to lines