In this paper, the performance of the downlink of the LTE systems for cigar-shaped microcells at highways is studied. The two-slope propagation loss model is used to calculate the signal to interference plus noise ratio taking into account the expected value and the variance of the cochannel and adjacent channel interference. Also, the effect of the inter-carriers interference due to the user movement is taken into account. A model of ten cigar-shaped microcells is used in the LTE performance analysis. For the frequency band of 2.6 GHz with a 10 MHz bandwidth, the base station transmitted power should be 2 W to get a sector range of 1356 m meanwhile it should be 3.1 W to get 1500 m sector range. For the 800 MHz frequency band, maximum range of 2909 can be got with a transmitted power 4 W when the break point distance Rb is maintained at 250 m. With a frequency reuse of 2, a sector mean bit rate up to 41.65 Mbps can be got with a 10 MHz bandwidth. Small scale fading affects the SINR of the LTE user and consequently the downlink bit rate.