How can I assign different id's to one line in an attribute table to analyse rivers?

[المشرف العام]

I have a line drawing of some river channels which I have georeferenced and loaded into Arcmap. Now I would like to do some analysis which involves calculating the sinuosity, channel trend and channel width. I hope to create an output such as the table below (with random numbers put in for this case, excuse the formatting but I have used "|" to indicate separate columns):

Channel Id | EndtoEndLength| EndtoEndTrend (degrees) | SinuosityLength | ChannelWidth

D1 | 17 | 130 | 35 | 3

I have a shapefile for polylines, is there a way where I can create a polyline, assign it an id for each channel (i.e. A1, A2.... D1, D2 etc.) and then assign it an id for the categories above where it will return the length of the line (End to end length, sinuosity length, channel width). On a second note, how would I return a value for a) the length of a polyline and b) the trend of a polyline?

Thanks



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