Thank you, John, and thank you, Tim and good morning, everyone. I would like to begin by recognizing our entire network for their efforts in the fourth quarter. We executed and helped our customers to navigate some of the most challenging circumstances and recent memory. And doing so, we achieved solid financial results in the fourth quarter with momentum moving into 2018. Now, onto the summarized income statement on slide four. Net revenues increased 12.5% to $632 million, the largest contributors for truck load services which is up $45 million, global forwarding services up $13 million and less than truck load services up $11 million. Fourth quarter personnel expenses increased 19.7% as a result of higher variable compensation and a 6.8% increase in headcount. We’ve mentioned in the past that our compensation plans are annual, but adjusted on a quarterly basis. The adjustments this quarter are increasing as a result improved in the quarter, while the results were declining in last year’s fourth quarter plus driving lower incentive compensation during that period. For the full year, personnel expense increased 10.8% on a 7.4% increase in headcount and a 19.5% increase in overall volume. SG&A expenses were relatively flat in the quarter at $109 million. The slight increase was due to higher warehousing, occupancy, equipment rental and depreciation partially offset by lower claims travel and entertainment and temporary labor. Operating income as a percent of net revenue was 33.4%, 110 basis points below last year’s fourth quarter and up 70 basis points sequentially. Our objective is to grow operating income at a rate equal to or greater than net revenue and while we narrow the gap we still have work to do. We will continue to manage expenses and strive for greater efficiencies as we move through 2018. As John mentioned, our fourth quarter results contains certain nonrecurring tax items which fall into two primary categories. The first is a domestic manufacturing tax deduction under Section 199 of the Tax Act. And the second relates to the Tax Reform Act passed in December that target revaluation of deferred tax liabilities which reflect a lower domestic tax rate in the future. These nonrecurring tax benefits are partially offset by an increase in repatriation tax on forward earnings and other impacts of the legislation. In total, these items lowered our fourth quarter provision for income tax by $31.8 million. The effective tax rate was 21.1% in the fourth quarter and 30.7% for the full year. Including the benefits of the new US tax legislation, we expect our 2018 effective tax rate to be between 24% and 25%. We believe tax reform will be a benefit to our company, our employees, our customers and our shareholders in 2018 and beyond. This act increases our ability to invest in areas of growth and efficiency which help us drive greater shareholder value. Moving onto slide five and other financial information. We generated $162 million in cash in the quarter and $381 million for the full year. On a year-over-year basis, the decrease in cash flow from operations for the year was due to the increase in account receivables, increase volumes, customer rates and cost of transportation resulted in increased growth in working capital. While we need to do a better job of working with our customers to drive down our DSO, it is typical to see the receivables grow during periods of accelerating top line growth. We had $11.5 million in capital expenditures in the fourth quarter and $58 million for the full-year. For 2018 we estimate capital expenditures to be between 60 million and 70 million the majority of which will be dedicated to technology. We finished the quarter with 334 million in cash up almost 40 million from the third quarter and our debt balance is unchanged at $1.47 billion. On to slide 6, on our capital distribution to shareholders. We returned approximately $118 million to shareholders in the quarter, with over $65 million in dividends and nearly $53 million in share repurchases. For the year, we return at 91.5% of our net income to shareholders. The majority for our earnings are generated in the United States, so we have historically paid a high tax rate. The reduction in the U.S. corporate tax rate will certainly increase our earnings and cash flows from operations in the future. In line with our stated policy we will continue to evaluate and deploy our capital in ways that both drive better performance and increase shareholder value. We will continue to invest in our people, processes and technology as collectively these generate outstanding results for our customers and returns for our shareholders. Corporate development and acquisitions have been and will be an important part of our future strategy. Over the last several years we've spent over $1.2 billion on company's and people that are important part of our current go-to-market strategy. That will continue to be an area of high priority for us. And finally share repurchases and dividends over the last five years we've returned over $2.8 billion to our shareholders in the form of buybacks and dividends. We will continue to reward our shareholders through this avenue in 2018 and beyond. Moving on to slide 7, and net revenue by service. This slide represents the service revenue for all of our business units. I will not review this slide in detail, but rather make comments about the various services within the business segments. Moving on to slide 8 and our transportation results. Transportation total revenues were up 17.2% in the fourth quarter to over 3.6 billion and we finished the year at 13.5 billion. Both results are all time highs for our organization. Fourth quarter transportation net revenue margins decreased 60 basis points to 16.6%. The decrease was driven by margin contraction and our Global Forwarding business, more on that in the coming section. We finished the full-year in 2017 at 16.6% down 180 basis points from 2016. The truckload margins pressure [ph] we experienced throughout the first three quarters in 2017 was the primary driver of the decreased net revenue margin. Turning to Slide 9, and North America truckload price and cost chart. On this graph, the light and dark blue lines represent the percent change in North America truckload rate, and cost per mile to customers and carriers net of fuel costs since 2008. The grey line is the net revenue margin for all transportation services. In this year's fourth quarter, the North America truckload rate per mile increased 15% while cost to mile increased 14.5%. Q4 was the first quarter in the past six quarters where the change in price outpace the change in cost. We have mentioned in the past that the duration and severity of supply and demand and balance will factor in pricing outcomes. We do expect market volatility at higher pricing to continue throughout 2018 at both contractual and spot market freight. The volatile market conditions which started at the end of the third quarter continued in the fourth quarter. One of the other metrics we often share is the routing guide deck from our manage services business. In December, the routing guide deck was two, representing that on average the second carrier in a shipper's riding guide was executing the shipment. As I mentioned that this was an average of two during the month. However, during the quarter, we experience weeks where the routing guides spiked to over three and was over four in certain parts of the country. By comparison last year’s routing guide deck was 1.4 which is what you typically see in a more balance market. We think this chart does a great job illustrating the significance of cyclicality and the volatility in the North American trucking market. The dramatic increase in pricing from the first quarter to the fourth quarter was challenging for our business and I’d like to recognize the NAV and customer facing operations teams on their ability to successfully execute and adapt this fast-changing market. Moving on to slide 10 and the North America surface transportation results. In the North America surface transportation segment, total revenues were approximately $2.6 billion in the quarter, an increase of 14.8% over last year’s fourth quarter. NAST net revenues increased 14.3% to $415 million as a result of increases in both truck load and less than truck load services. Net revenue margin was 15.9% in the fourth quarter which is flat versus last year. Our fourth quarter margin represents a 60-basis point improvement sequentially as we successfully repriced a portion of our contractual business in the quarter. The quarter also benefited from the double-digit volume and pricing growth and higher margin transactional business. Operating expenses increased 14.2% as a result of increase personnel expenses primarily driven by additional headcount and higher variable compensation expense when compared to last year’s fourth quarter. NAST income from operations was up 14.5% to $181 million. For the year NAST generated just under $630 million in operating income. NAST operating margin was 43.5% in the quarter, up slightly from the 43.4% last year and up a very nice 340 basis points sequentially from the third quarter. Employee count was 6,878 up 1% from last year’s fourth quarter and down 120 people sequentially from the third quarter. Now onto slide 11 and the results by service within NAST. NAST truck load net revenues were $305 million up 16.6% from last year’s fourth quarter. The truck loan market continues to experience high capacity and rising cost beyond the third quarter when hurricanes and the beginning peak season caused the market disruption. In the fourth quarter, a strong holiday season led by e-commerce the official implementation of ELDs and severe winter weather further impacted and already tight capacity environment. Our account management and capacity teams executed well in this environment. In our contractual business we work with our customers to adjust pricing to adapt to the rising cost environment. Pricing for our truck load business increased 15% in the quarter. The repricing activities did negatively impact our volumes in the contractual business and with the primary driver of the 3% volume decrease in the quarter. The truckload Boeing and decline accelerate through the quarter with October down 1%, November flat and December down 4% all on a year-over-year basis. And despite rising cost we continue to honor our customer commitments. Our negative loads associated with contractual shipments were nearly double a typical fourth quarter. The fourth quarter was an active quarter for repricing and this cadence has accelerated into the first quarter which is typically the highest volume quarter for bid activity our team will also active in helping customers as they are routing to guys to deteriorated. Growth in our transactional shipments partially offset the contractual shipment declines resulting in approximate 50-50 split between those segments for the quarter. Pricing and margins were higher on these transactional opportunities helping to offset the pressured contractual margins. In January we are seeing a double digit increase in transactional volume and continued increase in pricing. We had 3,700 new carriers in the fourth quarter, a 9% increase over last year. These new carriers moved approximately 17,000 shipments for us in the quarter, while the ELD mandate did not take effect until December 18th we did not see a slowdown in signing up new carriers in the quarter. For the first time in our relatively young LTL, 3PL history we crossed the $100 million mark in net revenue for the quarter. We are all proud of the great work that the NAST team is doing and in particular the LTL Group including Freightquote. Its yet another way we differentiate ourselves as the leading 3PL in North America. Volumes in LTL increased 10% versus the fourth quarter of last year driven by increases in the ecommerce and manufacturing verticals. LTL pricing and cost increased in the quarter as a result of larger shipment sizes, higher purchase transportation cost and increased fuel prices versus last year's fourth quarter. Intermodal net revenues decreased 34.4% in the quarter consistent with previous quarters we are seeing growth in lower margin contractual business and declines in transactional business. In total volumes increased 7% in the quarter. Slide 12, outlines our Global Forwarding results. Total revenues for Global Forwarding segment in the fourth quarter were $591 million, up 24.2% versus last year. Our Global Forwarding team has been on a very nice growth trend in the past several years. Over that time, we've significantly expanded our service offering, grown organically and successfully brought two wonderful companies into the fold. Congratulations to the Global Forwarding team for exceeding 2 billion in total revenue for the full-year. Fourth quarter net revenues were $128 million a 12.1% increase from 2016. Milgram & Company contributed approximately 5 percentage points to the growth in the quarter. As a reminder, Milgram is a world class provider of freight folding, custom’s brokerage and surface transpiration in Canada. Organic net revenue growth was approximately 7% in the quarter. Net revenue margin was 21.6% down from 24% last year. The margin expression was a result of lower margins in both air and ocean service lines. Operating expenses increased 24.1% in the fourth quarter. During the quarter, headcount increased 19% with Milgram accounting for approximately 8%. Additionally, as in other part of the business, we saw an increase in performance-based compensation. SG&A expenses were also up in the quarter driven by investments in air freight and technology with slightly higher levels of reserves for doubtful account. Income from operations was down 31.6% to just under $17 million and operating margin was 13.2% in the quarter. Turning to slide 13. Our Global Forwarding and Service Lines. Ocean net revenues were up 5.5% with the acquisition of Milgram contributing approximately three percentage points of the growth. Ocean shipments increased approximately 12.5% in the quarter. In 2017, for the third year we maintained our ranking as the number one NBOCC from China to the United States. Air net revenues increased 16.7% with Milgram contributing two percentage points. Air shipments increased approximately 28% in the quarter as we continue to execute on our strategy to grow volume and density in our Air Gateway cities. Air freight cost have increased over the past couple of quarters, as increase demand continues to outpace supply. Customs net revenues increased 33.3% with Milgram contributing 22 percentage points of the growth. Customs transaction increased approximately 68% in the fourth quarter. The Milgram integration is going well and we are currently working with our global chain to convert their agent business into our network, it is very similar to what we did after acquiring APC. Transitioning to Robinson Fresh business on slide 14. Robinson Fresh total revenues were $595 million an increase of 12.3% in the fourth quarter. Net revenues were $54 million up 4.6% from last year driven by increased sourcing and other transportation net revenues partially offset by a decrease in truck load net revenues in the quarter. Robinson Fresh operating expenses increased 6.4% in the fourth quarter, the increase was due to increased personnel expenses partially offset by a decrease in SG&A. Income from operations was approximately flat versus last year at $12.9 million. Robinson Fresh average headcount decreased 1.7% in the quarter. We’d like to thank the Robinson Fresh team for doing a nice job and executing in the dynamic commodity and transportation environments to deliver improved results in the quarter. Moving on to slide 15 in our sourcing results. Robinson Fresh sourcing total revenue increased 2.8% in the fourth quarter and net revenue increased 4.6%. Sourcing case volume increased 1% and net revenue margins increased slightly in the quarter as a result of higher net revenue per case. Slide 16 outlines our Robison Fresh transportation business. Robinson Fresh transportation total revenues increased 25.1% in the fourth quarter, driven by truckload volume growth of 18%. Robinson Fresh transportation net revenue increased 4.5% in the fourth quarter, due primarily to an increase in lessened truckload and intermodal net revenues which is partially offset by a decrease in truckload net revenues in the quarter. Moving on to All Other and Corporate on Slide 17. All Other includes our Managed Services business, as well as surface transportation outside of North America and other miscellaneous revenues, as well as unallocated corporate expenses. Headcount was up 6.7% in this area, and this was primarily the result of personnel increases in technology, other enterprise resources, European Surface Transportation, and Managed Services. Turning to Slide 18, net revenues for the Other category increased 6.6% in the fourth quarter. Managed Services net revenues increased 3.7% in the fourth quarter driven by adding customers and growing business with our existing customers. The lower growth rate in this year's fourth quarter was expected given this current performance in the fourth quarter of 2016 when net revenues increased 33%. The Managed Services business finished the year with approximately $3.5 billion in freight under management and 11.5% net revenue growth. Other Surface Transportation net revenues increased 10.1% in the fourth quarter of 2017 to $16.2 million. The increase was primarily the result of truckload volume growth in Europe, to partially offset by truckload margin compression. We continue to grow market share in Europe and are pleased with the work the team is doing. I'll finish my remarks today by again thank you the entire Robinson team to their performance during the volatile fourth quarter. We made some significant improvements versus the third quarter and we head into 2018 with positive momentum. Thank you for listening this morning, and I'll turn it back to John to make some closing comments before we answer some of your questions.